Might just be a memory issue.  Try closing Poser, then starting it  and running the sim again.

Did you start your character at a zero pose in the first frame and then set it at the
final pose in the last frame?  In other words, was the leg inside the dress when
you started the animation?  This looks like what happens if you have poke through
at the start of the animation, and the Cloth Room then can't calculate the collisions
accurately enough to move the cloth outside of the character.

yes, my model was at a zero pose. so do I make the postion, then move back to the first frame before I start sim?

I suggest you run the simulation with the figure at zero pose and check that the dress stays together .    Some items will seperate if they were constructed with seperate pieces.

Once you know the cloting is good , set zero pose at frame 0 and your fnal pose at frame 20 or 30 and use maybe 40-60 frames for the sim. Allow some frames for the cloth to settle after the final pose.

Hi,

It looks like you might need to add in a few drape frames for the wrinkles in the dress mesh to unfurl(sp).  One thing I might add, is if the dress hangs to the floor, be sure to add in GROUND in the collide settings box.  Also, uncheck the ignore foot collision setting.  This will cause the dress to ball up all around the feet and ankles.  BTW, that looks like a very pretty dress.  Not to be nosey, but which model is the dress for?  Thanks, -Starkdog