Is that possible??? 24' 2007 iMac My hard drive died, apple store replaced it and technician told me that it was caused by the extra memory 4G, that I had just installed before Christmas, 1 month ago. Crucial 'VALUE SELECT' bought from Circuit City, advertised for IMAC. Worked good for a month, although i had not seen any speed increase in internet brousing, bought it for kids to play games. Suddenly one day finder and other utilities failed to start So Apple tech. gave me the memory back and installed original 1 G So can I put it back? Can I complain with Crucial? i do not want to kill new hard drive Please advice!