I build my new PC about two months ago- the graphics card I threw in? Gainward Ti4200... I don't have a backup graphics card. I don't want to spend cash to run my PC while waiting for a replacement to be sent... and I've been getting a bunch of pink and blue squares while running 3dsMax every so often (although I haven't seen it in any games...) Well, I don't overclock, so maybe it's just that application...