I've ONLY used them for my last 3 Macs and have never had a problem. I will continue to use them. best, -Preston >In short, both my son and I have MDD Dual 867's with a gig of ram. His >birthday is coming up so I thought I'd get each of us another gig >(two 512 sticks) >and max out our machines. Has anyone had good or bad experiences >with Coast to >Coast memory, (1-800-4-Memory) ? > >STeve