Something similar happened to me after I installed their beta from the Swype website. Even after uninstalling it, regular Swype and other input methods started going glitch-fest on me. I restored a backup, and I was fine after that. The only other thing I can think of is to force stop it and clear the app data from manage apps menu, then re-launch it. If that doesn't work, you could try extracting the apk from a stock rom and reinstalling it. Otherwise, there's always the old faithful unbrick/unroot guide that will put you back to stock... Not sure if it's THAT important to you, but just some suggestions.