I never used DVI on my Z2; I only use VGA and when I first got it ran component just testing it so I can at least tell you that works fine. I do seem to remember (and I may remember wrong) that early firmware versions of the Z2 had dvi issues. Having said that if your computer is crashing I would look there first. Try newer of maybe older video drivers as a start. What happens if you just make the Z2 the only display?