I'm having trouble booting my old Power Mac 6100/66 (which IIRC worked perfectly when I shut it down) but it's been 15 years or more (and a move or two) since using it and I can't remember even basic troubleshooting techniques. I hope someone here is willing to (try to) jog my memory a bit but here's what I have so far: 1. The CMOS battery was long dead and I got a new one and it (tries to) boot now 2. It does not boot from the internal drive (flashing disk ? icon) 3. It will boot though using my Mac OS 8 Disk Tools 2 floppy disk 4. My hard drive appears on the desktop ("Laserfan's Mac") but when I open it, the window shows a file with a blank icon which iirc is named "Where_have_all_my_files_gone_?" or some such and is itself un-openable 5. Despite 4. when I run Disk Tools it says the drive is OK for whatever that is worth I recall having an external drive or two but the one I found and tried, with active terminator, didn't help matters--I thought maybe I'd been booting to the external drive for some reason but either I'm wrong about that or the ext drive itself died on-the-shelf. The pushbutton on it is set as "1" which I think is probably right. What might item 4. mean? EDIT: Oops I didn't search on the right terms earlier I guess. No doubt the floppy I used to boot the Mac has an older OS on it, and the PowerMac is prolly loaded with 8.5 since I have that CD in my CD box. Hmmm I wonder if I can boot the thing with the CD--will have to try. Is there a reasonably cheap PC SCSI external e.g. USB adapter, or internal card that is useable to mount SCSI disks to PCs (I do have MacDrive on one of my computers, that I've used to read Zip disks) so I might at least see what's on my (many) Mac SCSI hard drives? EDIT AGAIN: I find a SCSI card for $109 on Amazon but maybe it makes more sense to buy a used Mac???? Any help or advice is welcome, and hopefully my ancient Mac wisdom (we had an original Mac, and a Lisa/Big Mac, and a IIsi etc. etc. before going-over the The Dark Side) will come flooding-back to me. Right now I feel dumb as a rock. I'd of course much prefer to get this thing running again vs. mounting disks on a PC just to look at files... TIA for any advice!