I moved all of my steam games (via the steam folder) to a new hard drive to save space. Now, when I try to launch hammer, it gives me the message: gameinfo.txt is missing. Blah blah, blah it's right where it should be, probably a directory error. I'm sure that a simple cut and paste would not change the directory within hammer, as stubborn as it is, for the game (In this case, Garry's Mod.) I already tried reinstalling the game, to no avail.