ok, so after buying SINS and Enchrenchment via digital download, and after installing both i have been having nonstop problems.

at first, normal SINS worked fine but entrenchment didn't.

so i uninstalled both and only re-enstalled normal SINS.

then after working for a while, SINS wouldnt start because of some C++ error or something, so i uninstalled it.

but now i cant install anything because both SIns and entrenchment have "Invalid Registrations"

even worse, i copyed the SINS key to a text file, and removed the registration in hopes that re-doing it entirely would work.

well it didnt, and now i've basicly spent $40 for nothing. can anyone help?