Ok I got it on both my machines. My problem stemmed from having Firefox set as my default browser. Even with pop up blocker turned off, it would not bring up the Pixologic site to show me my activation code. I switched my default browser to Explorer and it worked. 
Ok I got it to run on my laptop (windows 7). the problem seems to be that on my desktop (windows vista) I donāt get the prompt from the internet to activate zbrush. Iām using firefox and I have the popup blocker turned off. Everytime I try it, it skips the registration step and just asks me to enter my activation key. Any ideas?
Ugh, now the print exporter plug in wont work on my desktop. Works fine on laptopā¦ It seems the problem lies within windows vistaā¦
Itās sounding increasingly like your installation of Windows has become corrupted. This does happen over time. Depending on the user, Windows can go from 6 months (for a heavy user) to 2 years, but it will eventually wear out and need to be reinstalled to fix the various problems.
However it would help if you said exactly what happened with 3D Print Exporter. āIt didnāt workā doesnāt really help.