Hmmmmm, so far I've done a bunch of conformers with ERC controlled morphs (the kind output by Morphing Clothes, which I believe you also use) and they work.  Could you try one of these conformers of mine that have been updated and see if you have the same problem?  Then maybe we can figure out what is different.
http://sites.google.com/site/fleshforge/Home/free-stuff-1/outrageous-monokini-v4
http://sites.google.com/site/fleshforge2/Home/free-stuff/black-widow-v4
http://sites.google.com/site/fleshforge/Home/free-stuff-1/dark-sorceress-high-rez
(skimpy pics on all those links)
All those were done under Poser 8 SR3.  Do they work for you?

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