Happens to me as well, after a time frame between 5 to 15 minutes, can re-produce this every time.
Just loaded up the game and minimized it so I was able to get a crash report that isn't spammed by other stuff. This is what it looks like:
...calling LoadLibrary( 'imm32.dll' ): succeeded
...initializing Input Method Editor
------------------------------------
sdMemory::AlignedAlloc ( "SDHEAP_MISC", 2 ) request for 2048 bytes aligned at 128 failed
...unloading Input Method Editor DLL
mouse: Failed to remove raw input device
...unloading Raw Input DLL
Shutting down OpenGL subsystem
...releasing DC
...destroying window
...shutting down QGL
...unloading OpenGL DLL
...unloading Windows Terminal Server API DLL
http://img696.imageshack.us/img696/2020/brinkcrashtodesktop.jpg
This doesn't happen when I leave the game alone for 5-15 minutes when it is NOT minimized.
Running Win7 64-bit
Thanks for reading!