Hi podperson - that sounds like an error in the protection mechanism that is wrapped around the 30-day trial version.

Try the alternate trial version from here:
http://moi3d.com/1.0/trial/moi_v1_nosave_trial_setup.exe

That does not have the protection mechanism on it, and does not expire, but instead has saving disabled. It's actually closer in structure to the full release version.

If that "nosave" trial version works, then probably the full version will also work even if the 30-day trial does not.

- Michael