I have a Gateway 507GR that is a few months old, and every time I shut down or restart my computer I have a hard time getting it to start back up. What happens is that I get a black screen and then a message will appear saying "check pc or connection cable monitor is working." I do not have a Gateway monitor, its a generic monitor (brand is MAC or something like that.) This happens everytime I do a windows update or restart my computer for any reason. The other day it happened and I unplugged everything, opened it up to see if something was loose and took out a RAM chip and reseated it. That worked until last night. I tried the same thing this morning, but it didn't work. After about 6-7 times of turning it off and on with the power button it finally started up. Its almost seems like there is a short of some kind, because my CPU is on a little stand thing and on the time that it did work it was after I pushed it back a little before pressing the power button. Could this be a problem with my monitor? Maybe a video card problem? Something else maybe?