When you make a OpenGL material that look like this “Texture1 - Texture2 - Shade - Draw”
Texture1 = Detailed albedo that is repeated using UV-set 1
Texture2 = Poly Unique ambient occlusion texture using UV-set 2

When i export it into dot-xsi it automaticly sets both Texture1 & 2 to use the same UV-set and you cant view a model that has two UV-sets properly as it will only force use one uv-set for both my repeat and unique map.

Currently i use XSI v.5 wich works very well with the material i just outlined however i want to upgrade to 2010 but i cant do that until i know i can use it with my old content, clearly this seems like a major bug since i have tried the tryout version on 4 diffrent machines with significant hardware variations.