Hi, I am currently using my itunes artclips as my screensaver. I noticed on two occasions already that sometimes the cliparts wont show and an error message that says, the itunes cliparts library does not contain any,shows up. The first time it happened, I was ripping dvs so i thought that was the culprit. The second time it happened, I wasn't doing anything except using itunes. This has never happend to my previous macbook white 2.4. I am now using a macbook alum 2ghz. What could be causing that?