on 06/10/22 23:41, T.L. Miller at tlmiller at mac.com wrote: > I'm thinking that the two gigs of RAM I installed could be the problem. Why? Your MacBook has hundreds of hardware components in it which could cause this problem, not to mention software. If it were RAM, I would expect to see many different problems; random freezes and crashes at unpredictable times, not a single specific problem as you have described. > Again, any easy way to test RAM? Would an Apple store have RAM test equipment? Your RAM is probably tested every time your machine boots. I would say that you're in a very unfortunate situation, and you're going to have to work persistently with AppleCare to get it fixed. First of all, they'll have you reinstall all of the system software. If that doesn't work, you're going to have to send it in to them, and you're going to have to be insistent that they not send it back to you until they've reproduced and fixed the problem, and this might take a long time. If they can't find the problem in a reasonable time, they should send you a new machine, and you might have to threaten to start an "apple sucks" blog to get them to do this. Good luck! Jerry