Gericom Laptop: X Problem with the Screensetting

[Michael Merting]

hi
my friend got a new Gericom Laptop with SiS630 Chipset. He also got problems 
with the X-Server. We found out that only ol' Xfree3.x supports the chip but 
nonethless we only get 640x480 to work which looks very bad since the picture 
can't be centered so it's almost impossible to work like that.
would be cool if some of you might know how to setup the screen.
thx if.
michaEl