I'd experienced simillar clock problems on my VAXstations and MicroVAX II.
However, they all went away when I set them up with timed support and set
up my Linux box as a timed server.  The machines boot and have their time
set without problems.

It's not a fix, but it's a great workaround that doesn't require you to
drop to single user mode to fix the date.

-brian.
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Brian "JARAI" Chase | http://world.std.com/~bdc/ | VAXZilla LIVES!!!