Hey guys! I am brand new to MacForums. I just registered tonight hoping you, unlike anyone else could help me. Okay, here we go: I have an Intel White iMac. I recently hooked up an external Dell monitor to it using a VGA to Mini-DVI adapter. It is working great, except for one thing. Every time the iMac goes to sleep, or even just puts displays to sleep, the monitor acts like there is no signal and starts that Self-Check feature (that bouncing multi-colored square that you always want to go exactly into the corner but, never does). I cannot figure out why! Don't just say that it's normal because I have seen people with Dell's hooked up to Macs and they do NOT have this issue. Now, I understand it could just be my computer, but, I am looking to get a new Mac soon. I am considering a Mac Pro, and so here is my true question because I don't think anyone will be able to explain for sure why it's happening to me: Does anyone out there have a Mac Pro connected to a Dell Monitor that does not have this problem? I want to know for when I purchase one, because that could make the difference between an Apple Monitor and a Dell Monitor. Thanks! I am new here and I am hoping my experience will be great! I am told you guys are incredible with answering questions and I know there is no bigger community of Mac Geeks than here... Thanks again!