Problem Details: When i select the cutting edge mode osu is crashing and i cant open it how does i can resolve the problem pls sorry for bad english
osu! version: 20150901 (latest)

I guess it is showing an error or something. Could you show us that error?

If you are not getting any kind of error message, please, explain your issue better. It's hard to help you if you don't provide information about the problem.

When i want open osu! thats open me a window marked osu crashed and i have only 2 choice restart osu or report an issue

Click in the image of the osu! crashed window, copy the text that will appear and paste it here.

************** Texte de l'exception **************
System.Exception: No available GL context found. ---> OpenTK.Graphics.GraphicsContextException: Failed to initialize EGL, error NOT_INITIALIZED.
à OpenTK.Platform.Egl.EglWindowInfo..ctor(IntPtr handle, IntPtr display, IntPtr surface)
à OpenTK.Platform.Egl.EglAnglePlatformFactory.CreateWindowInfo(IAngleWindowInfoInternal window_info, Int32 major, GraphicsContextFlags flags)
à OpenTK.Platform.Egl.EglAnglePlatformFactory.CreateGLContext(GraphicsMode mode, IWindowInfo window, IGraphicsContext shareContext, Boolean directRendering, Int32 major, Int32 minor, GraphicsContextFlags flags)
à OpenTK.Graphics.GraphicsContext..ctor(GraphicsMode mode, IWindowInfo window, IGraphicsContext shareContext, Int32 major, Int32 minor, GraphicsContextFlags flags)
à #=q0nw2E$4EyHgvdDS1h1qwyilpqax$ze599tX5_K0P30PptuhaT8tRAgnHiV6DIGuC.#=qqhVOHG$OA7rP7pIT2M7OAQ==(Int32 #=qFGP3ogpEwCvHoul2O2Q__Q==, Int32 #=q7SqJwRC5Ff07QKEKjl1lwA==, GraphicsContextFlags #=qpV7IauElzlVeVcvtp0ROxw==)
à #=qPWo5r_4Vk4FWRLVm3u2uHPSMBT0SshnOSZrPLMRKBO9LDT_CnvKoo0xk8eXYZR4H.#=qex3OsGWstIwAUstnGPmESJd6ECGvwhEnSi2dJ43Yv$U=(GraphicsContextFlags #=qpV7IauElzlVeVcvtp0ROxw==)
--- Fin de la trace de la pile d'exception interne ---
à #=qPWo5r_4Vk4FWRLVm3u2uHPSMBT0SshnOSZrPLMRKBO9LDT_CnvKoo0xk8eXYZR4H.#=qex3OsGWstIwAUstnGPmESJd6ECGvwhEnSi2dJ43Yv$U=(GraphicsContextFlags #=qpV7IauElzlVeVcvtp0ROxw==)
à #=qPWo5r_4Vk4FWRLVm3u2uHPSMBT0SshnOSZrPLMRKBO9LDT_CnvKoo0xk8eXYZR4H.#=qex3OsGWstIwAUstnGPmESJd6ECGvwhEnSi2dJ43Yv$U=(GraphicsContextFlags #=qpV7IauElzlVeVcvtp0ROxw==)
à #=qPWo5r_4Vk4FWRLVm3u2uHPSMBT0SshnOSZrPLMRKBO9LDT_CnvKoo0xk8eXYZR4H.#=qex3OsGWstIwAUstnGPmESJd6ECGvwhEnSi2dJ43Yv$U=(GraphicsContextFlags #=qpV7IauElzlVeVcvtp0ROxw==)
à #=qPWo5r_4Vk4FWRLVm3u2uHPSMBT0SshnOSZrPLMRKBO9LDT_CnvKoo0xk8eXYZR4H.#=qex3OsGWstIwAUstnGPmESJd6ECGvwhEnSi2dJ43Yv$U=(GraphicsContextFlags #=qpV7IauElzlVeVcvtp0ROxw==)
à #=qPWo5r_4Vk4FWRLVm3u2uHPSMBT0SshnOSZrPLMRKBO9LDT_CnvKoo0xk8eXYZR4H.OnHandleCreated(EventArgs #=qLWbHNrI0lrcMtnFfcq1pWw==)
à #=qbr5rVbXqVssh6S2Dw6sfcggpBNsV4MQi2R1asETbCoNWPYN5a0DLk4B88LQf7nSz.OnHandleCreated(EventArgs #=qLWbHNrI0lrcMtnFfcq1pWw==)
à System.Windows.Forms.Control.WmCreate(Message& m)
à System.Windows.Forms.Control.WndProc(Message& m)
à System.Windows.Forms.ScrollableControl.WndProc(Message& m)
à System.Windows.Forms.Form.WmCreate(Message& m)
à System.Windows.Forms.Form.WndProc(Message& m)
à #=qiZk6n3e51sOkTbyWI5Ie0hbsxW3Kfhw5lJdEzSugLqM=.WndProc(Message& #=qZeFJCosYZb0gzNu1XbzZqQ==)
à System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
à System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
à System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


************** Assemblys chargés **************
mscorlib
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1022 (RTMGDR.030319-1000)
CodeBase : file:///c:/WINDOWS/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll
----------------------------------------
osu!
Version de l'assembly : 0.0.0.0
Version Win32 : 1.3.3.7
CodeBase : file:///C:/Program%20Files/osu!/osu!.exe
----------------------------------------
System.Windows.Forms
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1002 built by: RTMGDR
CodeBase : file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll
----------------------------------------
System.Drawing
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1001 built by: RTMGDR
CodeBase : file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll
----------------------------------------
System
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1001 built by: RTMGDR
CodeBase : file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll
----------------------------------------
System.Xml
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1015 built by: RTMGDR
CodeBase : file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll
----------------------------------------
zx_b26671a1e694458f8e6a2edb901881e8
Version de l'assembly : 0.0.0.0
Version Win32 : 1.3.3.7
CodeBase : file:///C:/Program%20Files/osu!/osu!.exe
----------------------------------------
System.Configuration
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1015 (RTMGDR.030319-1000)
CodeBase : file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll
----------------------------------------
OpenTK
Version de l'assembly : 1.1.0.0
Version Win32 : 1.1.2049.0
CodeBase : file:///C:/Program%20Files/osu!/OpenTK.DLL
----------------------------------------
mscorlib.resources
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1 (RTMRel.030319-0100)
CodeBase : file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/mscorlib.resources/v4.0_4.0.0.0_fr_b77a5c561934e089/mscorlib.resources.dll
----------------------------------------
System.Windows.Forms.resources
Version de l'assembly : 4.0.0.0
Version Win32 : 4.0.30319.1 built by: RTMRel
CodeBase : file:///C:/WINDOWS/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms.resources/v4.0_4.0.0.0_fr_b77a5c561934e089/System.Windows.Forms.resources.dll
----------------------------------------

Par exemple :

<configuration>
<system.windows.forms jitDebugging="true" />
</configuration>

Do you have your GPU drivers up to date, or even installed? You can read a bit more about this here: https://osu.ppy.sh/wiki/GL_Support_Issues

If you don't know what GPU do you have, install this, take a screenshot of the "Summary" section and post it here.

Also, could you try this?:

ok i will try to update my graphic card ^^ ty for you're answer

Ok now i can open osu! but i cant connect to bancho

I see that you've submitted a score recently. Are you still having bancho problems?

when i want to go in cutting edge yes i cant connect to bancho

This issue would be easier to debug in our slack channel. If you aren't on it already, you can get on here.

DirectX not updated? =3

It has nothing to do with directX.

i can't access to this part of the forums
Please read thoroughly through the conditions on this post.
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You already have a slack account or have recently broken some game rules.

Riven-_- wrote:

i can't access to this part of the forums

This is not a forum, it's an external application. You can't get an invitation now because you have a silence from 5 days ago. Maybe we can get an invitation for you, but I'm not sure.