O.K. - having established this much, I must confess, I am not running Vista
myself, I am a visitor from the neighboring 64bit group - and I am also not
a network wizard by any means.
My preferred action and tactics towards making changes when having problems
and you really don't know what is going on is to remove what seems to be the
most likely problem and do a cold-boot. That is, turn the machine off and
start it again after a few seconds. Then keep it running for a while, try to
see if things are getting better or worse - if it seems to be largely
alright, then re-boot in normal fashion from this state and only then you
can start setting things back up again.
Many experts are saying that this is unnecessarily cumbersome, but it is my
experience that by re-booting from a clean state the whole system will be
more likely to accept the changes you are going to make, and much more
likely to recover if anything goes wrong again.
So, I think it best if I make room for the real 'answer guys' - in the mean
time I suggest you could indeed delete that account but you might want to
create some other account first and then do the 'cold-boot, re-boot'
shuffle, and then create the account you was originally thinking of, but
note - the networking subsystem may have changed between XP and Vista (as it
did between 2K and XP) so read up on the things you need to do.
With the risk of offending you, I have to ask about that upgrade from XP -
did you remove XP and install Vista clean? Or is XP still sitting there and
Vista on a separate partition or, (shudder) did you install Vista on top of
the XP installation? I think it is likely that you messed something up in
the installation, I would consider making a 'system restore' or 'repair
install' or backing up your data and wipe the disk and install it clean from
scratch.
Anyone else???
Tony. . .