Trident 9440 DirectX dtiver provided by Microsoft breaks down in some modes

[donder]

I have a Trident graphics card with TGUI 9440 chipset. The original driver from Trident website works fine but does not support Microsoft DirectX and doesn't work with some games. The driver provided by Microsoft DirectX works fine only in modes 800x600. In most other modes the screen goes crazy! Does anyone know where to get a good driver which supports DirectX?
Thanks for any help
My Email: donder@o.k.pl