Greetings all, I have an iMac G5 running @ 1.6 Ghz w/ 512 mb ram. I am running into a little problem in iMovie. I was editting a movie last night in it, and when I would apply effects like "Earthquake" or "Soften",etc instead of the effect being applied I would get a blank screen and not see anything at all but a white blank screen. Does anyone have any tips? Also are there any good iMovie websites for free effects, etc? thanks..