I am fixing up a ~2004 build as a back up computer. It was used as a gaming rig back in the day. Anyways, about 1.5 years after it was built, vertical lines would occasionally appear at the XP login screen and remain until the computer was turned off and turned back on (restarting did not fix the issue). The streaks do not move at all, they stay exactly where they first appear. Today, the problem still exists.
Here's a picture I took with my cell phone.

Has anyone had similar issues or have any thoughts on what is causing this?
Additional info: the problem only occurs about 1 in 7 boot ups. Computer is a 9700 pro, P4C800 deluxe mobo, P4 3.0 ghz with HT, ATA/133 HDD, CRT monitor.
Any help is appreciated.
Here's a picture I took with my cell phone.

Has anyone had similar issues or have any thoughts on what is causing this?
Additional info: the problem only occurs about 1 in 7 boot ups. Computer is a 9700 pro, P4C800 deluxe mobo, P4 3.0 ghz with HT, ATA/133 HDD, CRT monitor.
Any help is appreciated.