Please help! Problem with Maps and such

[alcarey]

My problem is that every time I launch Amnesia, it will get to the main menu, and not be able to continue the game from there. The cursor also leaves a trail behind it and after clicking on an option in the menu the menu remains. The screen goes black and then I get an error like "Could not load world file 'maps/main/00_rainy_hall.map'" I'm not exactly sure what the problem with the maps is nor can I resolve it. This is a relative new problem to my computer as I used to be able to play Amnesia without this problem. I have attempted to uninstall and reinstall Amnesia and it did not fix the problem. I know it is not my graphics card as I can play other games problem free, and I can even play the mod Justine. Please help as I will be forever grateful!

1. I have a 64-bit operating system
2. It is a laptop, specifically a Dell that runs Windows 7 Home Premium
I have also attached the hpl log and it mentions several errors

[plutomaniac]

reinstall the game or do a file integrity check via steam

[alcarey]

reinstall the game or do a file integrity check via steam

I uninstalled it, and then re-installed it, but no fix.
Through steam I verified the integrity of the game cache and it said "All files successfully validated" with no change to the problem.

[plutomaniac]

try to run the game as an administrator or with Windows XP compatibility. It seems that it cannot find necessary files...