Hi nspiratn,

I don't know... are you using maya 5 or 4.5... in 4.5 it apperently isn't supported...

but somehow it doesn't always seem to work in Maya 5 eventhou it should be supported, just resently on a other forum someone had a similar problem... you should be able to mirror the skinweight by just clicking on the mesh and then hit the mirror function with the proper direction thou...

hope this helps...

regards

Strarup