ColdRain

i've been using it for past 3 years. It's definately legit.

actually i've uninstalled entire OS, and reinstalled again with nothing except Geovision software, but still same.

Sure can. sorry for late response, but i'll post them up tonight. I dont think card has anything wrong with it, as in no burns. Is it possible for video card to go bad?

ok i now one have only camera connected with dvr card, and its right next to pc so i can see there are no interferences. uninstalled geovision software with removegeo, restarted pc, install it again. made sure its properly in but still no luck.

what do you mean by another video source? graphics card?

by no means to hijack this thread, but i have same issue which started about a month/half back. Just can't figure out whats causing it. I ended up reformatting pc and reinstalling everything, but same issue.