Black Screen on Main Monitor when exiting video on 2nd monitor

I searched the forum and could not find my exact problem, so i am sorry if this has already been answered in some form.

I am running on a Windows XP Pro system. With a 2.4Ghz P4 processor with 512 MB of RAM. I have an NVIDIA GeForce2 MX video card with TV-Out.

I use a dual monitor setup, but the 2nd monitor is my TV and only used when watching video. To watch video on the 2nd monitor i use the "Play On TV" option when right-clicking on a video. Usually after watching the first video all i fine, but after the 2nd or 3rd video when i exit it, my main monitor will go black while my TV remains as the 2nd monitor. I have tried everything to get the main monitor to come back, but the only way i have found is restarting. I have tried updating drivers and rolling back, all to no avail. Any help would be greatly appreciated, thanx.