Some people who experienced problems (and even crashes) with FaceShop 4 were able to get it working properly by updating their video drivers.
It is now known that some nVidea drivers don't work:
Here is one:
"After updating the driver to 6.14.11.7798 version (the last

one) (Nvidia 9600Gt), the result is disastrous"

But:
"GOOD NEWS, with the last version of Nvidia driver (181.20), all seems to
be good.Stand alone and plug-in."

Also: I"I have GeForce 8600 GT, vs. 167.63. Works like a charm..."

There seem to be issues with nVidea, not ATI or others.
If you have problems, pls. consider changing drivers.
Laslo