I have a 2007-era iMac in which I recently (~1 month ago) replaced the hard drive. It's been running just fine since. Today, I needed to reboot it in order to run Lion off an external firewire drive.

If you bought an Apple iMac with the original M1 chip a couple of years back, a new problem that's reared its head with these all-in-one PCs may be some cause for concern. There are a growing number ...