i checked the texture formats a gf4 supports with the directx caps viewer.

maybe the following list of supported uv-offset formats is interesting? what does d3dusage_dmap mean? are there less nos with ati cards?

nvidia geforce4 ti 4200 -> d3d device types -> hal -> adapter formats -> d3dfmt_x8r8g8b8 (fullscreen) -> texture formats

Code:

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texture formats   0 (plain)  d3dusage_rendertarget  d3dusage_autogenmipmap  d3dusage_dmap   

...

D3DFMT_V8U8       yes        no                     no                      no

D3DFMT_L6V5U5     yes        no                     no                      no

D3DFMT_X8L8V8U8   yes        no                     no                      no

D3DFMT_Q8W8V8U8   yes        no                     no                      no

...

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