viewsonic v1100 screen rotation

i have installed openSUSE on the tablet pc. it works great and faster than other distros. i have tried to rotate the screen using the gnome desktop and i get blank screen when the command is executed. does any one can help?. i do not know why it is doing it. i have follow all the installation requirements. the only thing i can think, it is the driver (intel i830).beyond that, everything else is fine.

> i have installed openSUSE on the tablet pc. it works great and faster
> than other distros. i have tried to rotate the screen using the gnome
> desktop and i get blank screen when the command is executed. does any
> one can help?. i do not know why it is doing it. i have follow all the
> installation requirements. the only thing i can think, it is the driver
> (intel i830).beyond that, everything else is fine.

Which version of Open SuSE?