Vertical lines on monitor

Not sure if this is the correct forum, but here goes.
When I start up my computer, it hangs with these variuous vertical colored lines on my monitor and the only thing I can do is re-start and then immediately hit the Insert key which then seems to allow normal boot-up. I go thru this proceedure everytime I bootup. My question is: What does this do to my CMOS settings, hitting the Insert key to get to my desktop and what is causing these lines on my Monitor??
I only discovered the Insert key, probably by mistake, thinking I was hitting the Delete key! I only know that it works to remedy
my bootup problem w/ these vertical monitor lines.
Cooling is not the problem as I have double the amount of fans the average computer has and my power supply is Enermax 430w.
A brief description of my set-up is:

Soyo P4S Dragon (SIS) 645
P4 1.8 512 L2 Cache .13 micron
IBM 40 GB 7200 RPM
Monitor Samsung 19" 950p
Video Card, Leadtek GeForce4 Ti 4400
OS, Win2000 Pro
768 DDR Ram
Thanks for your time, tiple

 

Two things I can suggest: Try a different video card and try a different monitor.

 

Try this!

Cold Boot straight into your BIOS - only hit the keys required to get there.

If you still have lines then there are bad mem chips on the vid card - but to be sure swap monitors (beg, borrow, steal...) and try test again in BIOS to confirm.

Based on the contents of the system you described it should still be under warranty, get the video card replaced.

 

I occasionally have this problem on my home computer. I fix it by turning off my computer and reseating all my video connections (AGP card, DVD decoder card, pass through cable, monitor cable). I turn it back on and it works for a week to 3 months before I have to do it again.