V4 is also available as V4WM.  This last one being a newer Weight-Mapped V4 figure.
Weight mapping is the newer rigging method., and Poser7 can not read those.

From the screengrab it sure looks like a rigging issue, so my first thought was;
This could be V4-WM in Poser7. 

But if you never downloaded V4-WM, it must be something else.

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!