Anyone's mini throw up this video pattern?
Brand new Mac mini 5,1 running 10.7.2. Randomly, it will crash every few hours and throw up this semi-checkboard pattern on my monitor, which is a Samsung 2333SW.
The dark areas are approx. 2" x 2" and they're made up of a series of horizontal 1/4" lines made up of vertical lines or static. Kind of looks like a bar code. If I'm doing something with audio, like listening to a podcast, when the crash occurs the audio screeches and sounds a bit like old dialup modems but 1,000 times worse. I have to reboot to get the computer working again.
The monitor has DVI-D and VGA, so I'm using Apple-supplied adapters. I've tried HDMI-to-DVI and Mini DisplayPort-to-VGA. Same problem. I've also tried different resolutions. I've reinstalled Lion. I've reset the SMC. All software and firmware is up to date.
The monitor works with other Apple computers, though they're running 10.6 and 10.5.
It may be coincidence, but the one possible consistency is the pattern appears during seemingly minor tasks - browsing the web, listening to podcasts, sitting idle in the finder, playing music, etc. It's occurred on a fresh install where I haven't so much as changed a system preference. But I've watched movies all day during holiday break and the issue never popped up. I've played games for 4-5 hours without issue. I ran iTunes for an entire day with the visualizer running and had no issue.
Any ideas or similar experiences before I bring it in to the Apple Store? Thanks.
Mac mini, Mac OS X (10.7.2)
