Alt-Tab Causes Aces high to crash

[Pand]

This just started in the last few weeks, whenever I alt-tab out of aces and alt-tab back in I get the aceshigh.exe has stopped working.

Any help would be appreciated--- this is the only game that crashes when doing this.

Dxdiag attached http://www.horizonx.org/upload/DxDiag.txt

[Noir]

yeah sometimes it crashes at ALT TAB, and when you come back the game still works, but the keyboard and mouse have no effect anymore 

[Skuzzy]

Do you need the ATI HDMI sound driver?  That driver will cause stability problems.  I do not know if it is impacting the ALT-TAB function, but it could.  It will cause other problems as well.  Stutters and so on.

[Pand]

Do you need the ATI HDMI sound driver?  That driver will cause stability problems.  I do not know if it is impacting the ALT-TAB function, but it could.  It will cause other problems as well.  Stutters and so on.

Thanks for the comments!  Haven't really had stutters, as long as I'm running clean (fresh boot with no random trash running in the background); however, I do need the ATI HDMI sound driver.