ATI 9600 BIOS Update fails

I have tried to update BIOS on my ATI 9600 Turbo (Inspiron 8600 WXUGA), but without sucess. I download the update from Dell, it unpacks, and WinFlash starts up, but quits with an Error window saying "resources files not found". The computer is only a couple of weeks, with most stuff installed by Dell. Operating system is XP Home, English version.

I have tried to boot into "safe mode" in windows, but same error occurs.

Anyone who encountered and solved this?

I would like to update the bios, since i experince some odd behavior when trying to view video on external (TV) screen.

any help apriciated