Hi JunkyJewell,
I'm not sure, but it sounds some parts of your model need more texture space. The way the exporter works, the more texture space a portion of the model consumes, the more triangles it gets in Second Life. If the texture space is too small, it might not have enough triangles.
This thread might help you:
http://www.inivis.com/forum/showpost...45&postcount=5
Let me know if this works!