Video screen is blinking

[ernie]

I have Vanguard installed on my laptop which is running Windows 7. Everything appears to be running okay except for one thing. The video on screen is blinking between the picture and a black screen. Yes, I have the latest Vanguard software installed. What else could it be?
Thanks

[Brian H]

Does the laptop have wireless networking and is it enabled?
You may want to try the all four transmit frequencies the wireless cameras can be set to.
http://kbase.x10.com/wiki/Other_2.4_GHz_Device_Compatibility

[ernie]

Yes to both, wireless networking and it is enabled. I didn't mention that the camera is not using the wireless connection, but the RCA cable from cam to laptop (V12A (?) adapter)