Originally Posted by scubasteve_888
I know redownloading the file will not help as the game works perfectly on my brother's laptop (which is much slower than my PC).
Did you copy the installer from your computer to his laptop (via USB, Network, you name it)?
Anyway, the problem sounds like a typical corrupted file error, therefore the first thing we should do is checking the installer to rule that out.
Tales of Monkey Island MD5 Check
Please download and install Hashcheck
Then Download this MD5 File
into the folder that contains the ToMI installers you downloaded from Telltale.
Finally just double click on the .md5 file for verification and tell us the results.
Green: File is okay.
Yellow: File is missing.
Read: File is corrupt.