dichihhu

Hello, I have installed a PC-based DVR for a customer who's live view is always blinking. The most serious problem is the color blinking. Please see the attached video2.wmv. I've changed several PC and several cameras, but seems no luck to improve it. Could anybody kindly give me an idea? Why this happens and how should I avoid it? Any idea will be highly appreciated! Best Regards, Derek video2.zip