While TeaTimer is closed, try to delete RegWhite.sbs, RegBlack.sbs and if you want, also ProcWhite.sbs and ProcBlack.sbs. Then restart TeaTimer and see what happens.
Or even better, check the access rights to these files. Are they maybe writable only by specific users? When Spybot-S&D is run on an admin account, it makes this folder writable to all users, but if you install and use it as a power user only, other users might have problems (until you run it as an admin once).