T42 with Radeon 7500 - No Rotate screen facility?

[umern]

I have a T42 with a Mobility Radeon 7500 chipset.
Recently got a Thinkvision L192p TFT screen which has a rotatin screen.
The user guide for the monitor says I should click the Advanced button on the display control panel and then use the Rotate tab to configure the rotated display.
But I have installed the latest driver from the IBM website for my laptop but there is no Rotate tab. I can see the other ATI tabs such as OpenGL, direct3d etc etc but noting anywhere to do with Rotation.

Any ideas - or is this just not a supported feature on my graphics chipset?

[skanky]

i used to be able to do this, either get the drivers from ati then mod them dhmodtool (google it) or get the omega drivers (again google for it).

you should be able to rotate, i used to use the oooold catalyst 5.6 modded, but they rotated fine..