hi all-- just got a 7100/80 M/B and am having trouble. I had HUGE problems installing OS 8 (many finder errors, forcing restart). Then finally with OS 8 installed, I installed OS 9, and on restart i got an extensions error. (actually bus error, and told me to restart with extensions off). Then on restart the harddisk was unreadable! I thought, ok, maybe it's the HD... so I swapped a known , good HD, and installed OS 9 using a different mac. When I put the good OS9 HD in the 7100, I get the same thing. Everytime I "restart with extensions off" I get a blank hard disk icon... and then on boot with a CD, the machine says the hard drive is unreAdable. So I dont know what is going on. Is 9 not compatible with a 7100/80? seems weird. perhaps I got a dud motherboard. any suggestions appreciated. this has already taken me some days to figure, and still it's a no-go. regards, ~Alex Users can subscribe to the List by sending an email to <muglo-request@xxxxxxxxxxxxx> with 'subscribe' in the Subject field Users can unsubscribe from the List by sending an email to <muglo-request@xxxxxxxxxxxxx> with 'unsubscribe' in the Subject field Users must send messages or replies to <muglo@xxxxxxxxxxxxx> All messages are archived so that you can view them at any time by going to <//www.freelists.org/archives/muglo> Problems concerning use of the FreeList should be sent to <paulthomas@xxxxxxx> Don't forget to periodically check our web site at: http://muglo.on.ca/