http://bugs.winehq.org/show_bug.cgi?id=3290
------- Additional Comments From oliver_stieber@yahoo.co.uk 2005-26-09 15:04 ------- I can't replicate this error with wine-cvs.
Can you see if the following demo runs ok.
http://www.codesampler.com/dx9src/dx9src_9.htm#dx9_cg_simple
You'll need the cg toolkit from http://developer.nvidia.com/object/cg_toolkit.html
and wine setup to win98 mode.