My Power Mac G4 (running Tiger 10.4.11 - 1GB Ram) has crashed twice today and it booted to a screen that had terminal like commands (sorry I didn't write them down) along with a box telling me that I needed to press the Power Button. It is running now so far w/o any problems. I had run into the same screen last Friday when I restarted my computer and at that time I reset the PRAM and once I was able to boot successfully I verified the disk and repaired the permissions. I haven't installed any new updates nor software since this issue has started. Any suggestions on why this is happening and what can be done so it doesn't happen again will be appreciated.