If I hit windows PrintScreen then ALT-TAB out, then use the taskbar to get back into Elemental I get this CTD.  It's reproducible.

debug.err

no memory dump created

dxdiag 32 bit

dxdiag 64 bit

Generally I don't get this CTD if I don't PrintScreen and just ALT-TAB out and taskbar in* (see edit below). 

Edited in:

I can reliable reproduce this CTD by twice ALT-TABing out then using taskbar to get back in.  The first time it's ok, the second time (immediately after the first time) it CTDs.  Have reproduced this several times.

debug.err from this

Ok, just got this CTD from single ALT-TAB out and taskbar back in, didn't have to do it twice.  The problem seems to be taking on a life of its own!  

It's alive!  

debug.err from this single event