Are you running any other programs in the background? Like a screen recorder, the DPS meter, OVR Drop, etc?
I will go back and look at a few of the logs you have emailed me to see if I notice anything, but something really weird must be going on to cause it to happen so often. There is one other person I am working with who is having some disconnect issues, but they are just disconnects that send them back to the login screen, not full-on crashes to the desktop.
EDIT: Actually looking in my email it looks like the last crash log I can see from you is really old (like from Beta 2), the ones from launch I have from you are for a black void bug and a card drawing bug. So send me a few the next couple of times it happens and I will check them out.