Hello everyone, I just recently started having problems with my iMac. Details: - 2006 White iMac with CD Writer/DVD Reader - 150GB HD - 1.83GHz Intel Core2Duo Processor - Recently upgraded 2x1GB Lexar RAM - OSX Tiger 10.4 Here's the background on what happened. I had started to archive (I think that's what it was..) something onto a USB stick with Disk Utility. I could see that it was going to take a while so I went out for a bit, expecting it to be done by the time I got back. When I did get back, I found that my iMac was frozen and the mouse wouldn't move at all; I couldn't click on anything, couldn't do anything with the keyboard either. So I though "hm, this is strange". I then held down the power button to force a shut down, expecting that it would start up normally. When I went to go start it up again, it was hung up at the Apple logo, no spinner, no broken folder icon, no question mark , nothing, just the Apple logo. Here's what I've tried (after hours upon hours of googling..): - Tried unplugging all USB devices (none were attached in the first place except the mouse and keyboard) - Tried holding down alt/option key to show list of boot drives; after clicking the main one, still gets hung up on Apple logo - Tried booting from CD; again, just gets hung up at Apple logo - Tried resetting PRAM - Tried booting into Safe Mode; still hung up on Apple logo - Tried booting into Single-User mode; I get to the screen with white writing on it, but it won't let me type in or enter any commands; from what I assume, it goes straight into Verbose mode instead - Tried Verbose mode, which is how I know that Single-User mode is being skipped.. I don't know what else to do really. Can someone please offer me advice on how to fix it?