when I start up my pc all i get on the monitor is colorful squiggly lines. then i turned off my monitor and when i turned it back on there is a big black squiggly line on the right side of the monitor. any thing that comes up is so distorted that i can't try to run anything
1. Try a different monitor.
2.Be sure it is fully plugged into the back of the computer.
3.If graphics card, be sure is is firmly seared in slot.
4.Check the graphics card drivers.
5. If onboard graphics try a graphics card.