I'm struggling to get a 20" wide monitor to work with a Toshiba M400. I don't have any wide resolution available. The monitor is well recognised and this mode is seen by windows, but the limitation is on the graphic part. The intel driver seems to be locked to 4/3 resolutions.
I've tried to play with Powerstrip, but custom resolution don't work with Intel chipset.
OS is Windows XP tablet Edition, fully patched uptodate drivers.
I know this is a common problem with Intel graphic chipset, haven't find a solution yet.