Confused

Love the game and Im completely addicted. But Im confused. Some of the two-letter words that are show in the apps dictionary are now dinged as incorrect when used. A couple of examples that I can recall are GI, TE. But there are others. GI is the most recent. TE has bee dinged for about a week now. Love the game, but thats annoying. Please fix.

Rholmes987 about SCRABBLE Premium