I also have a similar problem with my Sony Vaio. My laptop monitor works
fine but my externally connected monitor keeps changing screen resolution on
it on. Sometimes I can reset it to the resolution that I want. However,
sometimes my resolution isn't even available to select. This was happening
most of the time when I resumed from the photo screen saver so I quit using
that. Now I just have the problem if I restart the computer. So far the
only work around is to leave the computer on all the time. So much for
saving energy. But the only alternative is to spend sometimes 20 to 30
minutes trying to reset the screen resolution after a restart. Seems to be
some kind of bug with Vista not saving the current screen resolution on an
external monitor. Tried disabling TMM which seemed to be causing similar
problems to other machines with no external monitor but that didn't help mine.

"Telford" wrote:
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>
> I've got the same problem with an Acer SA90. It's set for 1440 x 900 but
> about one time in 20 it comes up in a lower resolution. I have to
> restart the computer to cure it, just logging out and back in again
> doesn't help, and I have to make sure I don't do anything much first
> otherwise all my icons get moved about by it.
>
>
> --
> Telford
>[/color]