I recently purchased Call of Duty and COD United Offensive. Call of Duty installed fine without any errors...so i decided to install the expansion...which automatically installs the 1.4 patch for you.
HOWEVER, during the installation of the patch...it stops near the end and says this:
The file c:\Program Files\ call of duty\Main\pak0.pk3 is not a valid previous version and could not be upgraded.
Now i tried downloading and installing the patch from the internet...but i get the same error. Can someone please help me