Tandy 600 acting squirrley...

Hey... I just plugged in & sparked up my Tandy 600, and it's acting really weird. First off, out of the 128K RAM that's in there, it thinks it has around a Meg in it... yes, I triple-checked the decimal place. Could HH/OS handle a Meg of RAM??? Secondly, it will only boot with the 4 fingered salute with <alt><label><ctrl><escape> and it gives me a really weird error: Uncoop System Load: Disk Error. Retry (Y/N)? If I insert the system disk and press Y, this is what comes up: Uncoop System Load: not found. Retry (Y/N)? If I answer N to either question, the machine powers off. When I repower the machine, I get this: Unable to restart, critical system data damaged. Hit any key to reinitialize system. Once I do so, it actually boots to ROM, and anything that runs purely from ROM will actually run, but to try to get a disk listing or (presumably) do anything that tries to grab "top of RAM" seems to crash, due to it thinking it has a Meg (1041888 is the number I get after a system restart) and not the 128K that it actually has. Any idears??? I haven't time to yank the 96K board out tonite, but will test that next. Oh, and from everything I tested, the Calendar proggie works great until Dec. 31, 2099, so methinks the think is Y2K compliant. (Better than my Palm III - it's only good until 2042... ;-) Thanks, Roger "Merch" Merchberger