So I tried to update my SINS and Entrenchment installs today. SINS updated fine, but Impulse Entrenchment says I have an invalid registration! I tried to edit the registration for entrenchment, and kept the serial number in the dialog box that came up (I am assuming it is correct, since I purchased Entrenchment via Impulse (obviously), and added my email address. No joy...and I can't find any tech support contact on Impulse.
So what do I do to validate my Entrenchment install?