It happens to me since I started playing this game (so far I had 2 PCs and 3 video cards, always with updated drivers). It's not very annoying, but rather weird. I play in windowed mode and often switching to browser, other programs etc. When I go back to game by alt-tab, I sometimes encounter whole osu blackened and it still remains like that until I restart the game.
http://osu.ppy.sh/ss/45359 <--- here I was spectaing someone, at this time "Spectator mode" and the rest was invisible, but usually it's visible.
It does NOT happen while I go back to game by clicking osu on the taskbar.
My previous cards were GF 9800GT, 9500GT and current is GTS 250.
http://osu.ppy.sh/ss/45359 <--- here I was spectaing someone, at this time "Spectator mode" and the rest was invisible, but usually it's visible.
It does NOT happen while I go back to game by clicking osu on the taskbar.
My previous cards were GF 9800GT, 9500GT and current is GTS 250.