1. Load Steam
2. From the My Games tab, right-click on the game and select Properties from the menu.
3. Select the Local files tab and click the Verify integrity of game cache... button.
4. Steam will verify the game cache files (GCF's) - this process may take several minutes. Do not verify the cache files for multiple games simultaneously - some games share cache files with other games and this may cause problems with verification.
/Marked as Solved