>> When I rotate my screen, the resolution is 1400x1050, the resolution
downsize to 1280x768, the screen shrink from 12" to may be 8",
proportions switch from "full screen" to "center screen" option. If I
rotate back the screen, the screen rotate, but there is no changes of
size and resolution of the screen. What can be the problem? <<

>> I run Vista SP1 <<

First, I don't have vista and have seen that there are some problems
with the graphics utils under vista... that said, on the XP, this works...

controlpanel/graphics utility.

The intel graphics utility then should have a "display settings" tab,
which includes the current resolution.

Assuming that works, use the "fujitsu tablet controls" and "save current
profile" which I _think_ will preserve it for future switches.

fwiw, while the graphics utility does set the resolution I have noticed
that it does _not_ preserve the resolution setting even if you save it
in a scheme, but the profile settings apparently does save it.

Beverly Howard [MS MVP-Mobile Devices]