Great to be in a crowd?

My iMac does this crazy thing where the desktop gets all kinds of “quilted” patterns on the screen. I’ve had it in the store and they can’t find anything. Of course they want to restore the OS and other mess. Isn’t this why I bought a Mac? Turns out tons of people have this problem. I’m just glad it’s a general thing and not my specific computer.

I suspect my next computer will be a small form factor PC with an unbelievable monitor running Ubuntu. The trick is to keep running open source applications or cross platform apps (like MoneyDance).