Incredibly weird start up

[reader51]

Wonder if anyone has seen anything like this. When I start up my machine, I am getting this very strange shaking quality to the screen image...the apple icon looks like it's on the back of a very beat up truck on a really bad road. It's shaking like crazy...in addition, the screen has a lot of gray lines that recall a really bad old b/w television. sometimes the desktop will finally load normally, and other times i get a full screen of a weird cross hatch pattern and I have to shut down and start over...
any thoughts on this would be much appreciated,
richard

 

[sursuciofla]

One of the old eMacs in one of the labs at my college does the same thing. Because they are eMacs I guess they don't care about getting it fixed. Wish they would and then I could probably give you help. But it is something wrong with the monitor...can't really pinpoint the problem though.

 

[surfwax95]

You may want to check the video card.

Run the hardware test included on the install disks.