Registering EVAN Toolbox

Hi,

I just recently joined EVAN after attending the AAPA Workshop in Portland. I'm having a strange problem with ET and was hoping someone can explain what's going on.
I work on a Mac but run ET via windows on parallels. During the workshop ET worked perfectly but now everytime I turn it on, I have to re-enter the license code everytime I close and re-open ET. Is there a way to fix that?

-Kyle Marian
Stony Brook University