I'm having a problem setting up my new HP w2207 monitor with my laptop. It mirrors it fine, but I'd prefer it to extend to the monitor instead. When i set it to extend, i can tell that it does extend because the mouse moves onto the next screen, however the monitor goes into sleep mode. Therefore I can't see any picture on it. And it stays in sleep mode no matter what even if i restart or change the settings back. The only way i got it back to mirror mode is by doing a system restore. Ive connected it using dvi but I don't think it matters for extending the monitor. Any ideas? (I emailed HP, but no help at all.)