I'll post the image here and copy/paste my comments from there.

I constrained the waistband on the pants that's pretty much par for the course but the top didn't need to be constrained at all for the sim to run. Without a constrained area and this pose it slips down over the arms so I constrained the bottom of the sleeves to hold it there.

So two in a row that didn't ned to be constrained, I was on a high and then I spent all day yesterday cutting a more complex short nightie and of course the sim wouldn't run without constraining the majority of the garment. Why????? I went back to VF and loosened it and recut it more simply. Still no joy. It seems anything I make with shoulderstraps I have this problem and there's no point in having shoulder straps that need to be constrained as they float above the shoulder and look ridiculous. I know this is mentioned in the manual but it's still extremely frustrating.

Does anyone know if Reyes had anything to do with building the Poser cloth engine? Perhaps they could rebuild it for Poser7 so that what I see in VF is what I get in Poser. Then again I have plenty of Dynamic Cloth that drapes perfectly in the current version so is the problem some thing else? Mesh export perhaps.

Lululee, what does BM mean?