I installed diablo 3 retail dvd all went well up to about 74 % then there was an error something about files not found must reinstall game. When I go back to dvd it download 46 mb and game is fully updated & I played for about 2 hours so far.

The error about files bug me, must I reinstall the game or if I leave it will I get to a point where the game tells me not files not found and kick me out.

total installation bytes on disk 8 343 638 016