Ok. My sister owns a 6500/250 Powermac with Mac OS 7.5.5. (She lives out of state so I can't see what is going on) When she starts up the computer, once the Finder begins to load, the bomb drops. It is the "Sorry...'Finder' Unimplemented Trap" error message. I asked her what extensions had an "X" through it at the startup and she says it is the one with the "Q" which I take to mean the Quicktime extension. Also, she says the last jigsaw that comes out before the Unimplemented trap pops out is the one with "PC" on it. The only way of restarting the computer is by shutting off the power (from the wall). After rebooting, the message consistently pops up, and does not let her do anything at all, so she cannot do anything about it. I was thinking about starting up with the shift key held down, but she doesnt have a backup disk or system software and I'm afraid she might be having to use SimpleText for the rest of the computer's life. What is the best thing to do?