As seems to be the procedure here, I'll attach my DxDiag.txt. I just bought the game and the first time I launched it, it crashed with an out of memory error from windows during the intro to gamma video. The next few times it varied between out of memory, some kind of memory access violation, and once a null pointer access violation. Those issues all disappeared after a while, and the game now seems to be stable in the main menu and lobby, but crashes with the generic "pa.exe has stopped working" when I try to start a match. I'm guessing this is because of an out of date video driver, but I can't seem to get it to update. I have an integrated video card (Intel HD Graphics 4000) and I've tried the updates from both Intel and my computer's manufacturer, as well as the manual install from Intel. The installer from Intel says that the driver is not "validated validated for this computer," the version on my manufacturer's website is older than the one I have installed, and the manual install didn't seem to do anything. Sorry this post is so long, and thanks for your time.
Check this how-to that explain how to install driver manually so it's will work: http://steamcommunity.com/app/233250/discussions/2/558749190911446231/ Driver you need is "win64_153314.exe" from this page: https://downloadcenter.intel.com/Detail_Desc.aspx?agr=Y&DwnldID=23639
