Has anyone had start up issues on their iMac? I am really not happy with mine generally as has been glitchy from the start (only had it a little over a year), but it has gone down again after the electricity went off briefly, which just should not happen when I have even tripped over power cables in the past pulling the plug from its socket but starting up again was fine on previous models such as a Powerbook, Quadra, G3, G4, cube and MacBook I've used over past 25 years. The first time was after just a few months and a proper shut down after quitting all applications, but this time the progress bar gets so far then it just gives up, and am not going to attempt a safe boot and resetting PRAM etc. as it took about 2 hours for Apple to talk me through recovery last time so am getting a tech in, but Apple's advice to me for avoiding future problems? Do regular restarts – which is exactly what caused my start up issue the first time. Anyone else? Am just really cross this has happened at all as it really shouldn't have, and Apple has had tens of thousands from me on their equipment alone, but to reward my loyalty they sell me shoddy goods. Grrrrr!