Keith -

Have you verified the scripts are working by typing in the name of the script?

Hit TAB then enter the following in the box at the bottom of MoI: _sSPLIT

Even with nothing created in MoI you should see a pop-up dialog that says "Select edge or face(s)

If you don't get the pop-up dialog then your scripts are not installed correctly.

If you do see the pop-up then the code you typed in from here has an error: http://moi3d.com/forum/index.php?webtag=MOI&msg=7245.69

The code in white is a screen shot from my working system, so if you retype it as shown it should work.

Ed