I just reinstalled skyrim & its giving me this error

unreconize game mode rescan games

I rescan bur keep getting this error

I suggest that you post your issue on http://forums.nexusmods.com/index.php?/forum/439-open-beta-feedback/.

Make sure you run the Skyrim Launcher once you "Verify integrity of game files" or flat out reinstall. It should rewrite registry's information that a lot of utilities require (game installation path mostly).