   [DX8+ATI] Fullscreen/windowed toggle problem
  So here's the situation.I have a game.Game checks if F5 is pressed and toggles HGE_WINDOWED state (i'm using DirectX-8 based HGE engine).The whole thing works fine on Nvidia cards.When I try running the game on ATI Radeon HD 3850 (1 gig video RAM), it works in initial state (either windowed or fullscreen), but after first try to toggle, fullscreen gets frozen and showing random pieces of textures/previous frames and doesn't update, so you have to toggle windowed mode and continue playing in window.The way it bugs gives me idea that its something happened to fullscreen device, or its video memory, that it shows static garbage picture, but all works fine if toggle to window. I'll continue googling and searching forum in the meantime.INB4 you asked if i use render targets which could get corrupt.I don't.The only case when I use render targets is to capture picture of scene and do a crossfade between scenes, but that render target is never displayed on a still scene, only first 500 msec after scene transition, while toggle bug happens in any moment, even on a still scene (no transitions, no activity on scene just repeatedly re-rendering same set of sprites) directly on to backbuffer.   