My nephew's iMac "bombed" under OS 10.x What has to be done to get the machine to work. I myself use OS Tiger 10.4.1 and had not had a bomb since OS 10. I recall several reasons: 1. I backed up Quicken on the desktop rather than Documents. Ala bomb. 2. Some popup ad bombed my Quicken data by changing all the dates to 2010. I noticed Apple, or the Mac internet sites do not talk about Bombs. That message in 4 languages and crazy sound like a crashing dive bomber. My nephew is new to Macs and does not understand the lingo. He is a former Windows user. I myself have been using 7 or eight Macs since 1988. Please indicate a step by step recommendation. Thank You.