if you want to test whether its a software/driver/configuration issue, or a monitor issue, leave your computer off in your bios. if you come back later and get a garbled screen...its the monitor. if its clear, then its a driver/setting issue as stated earlier.
I turned it on this morning and instead of loading my primary windows installation (vista) I booted into my win7 which has barely anything installed on it. It didn't give that wierd image but it did get a bsod and I managed to catch a glimpse of nvd**** something which is an nvidia driver. When I tried to re-enter into win7 the second time everything went ok. It's wierd though that from cold boot it crashes and the second time both vista and win7 work fine. :/