OK, mpoe, thanks for that. I'm looking into official disks. BTW...when I replaced the drives, I dug out an old disk that was no longer readable by the Mitel. I broke it open and examined it. Major dust/debris inside, scars on the media surface, it basically looked like the drive was eating away at it. I'm lucky it didn't destroy my other disks!

Now, do you have any insight on the fax/ONS question? I may need to tell clients to run fax machines on dedicated phone lines instead of going through my switch. I don't want to do that if not necessary, though!