I downloaded Doom 3 expasion ( Resurrection of Evil ) and I tired to install it, and it says it can not determine the version of Doom 3. I have Doom 3 DVD installed. Do I have to upgrade Doom 3 or something for it to see it?
The link above is on how to patch a manual install of doom, if that doesnt help, perhaps manually installing and then going to the above link may help.
Thank you so much, it works now.
If you have the DVD version, don't use the installpath they have there use:
"C:\Program Files\ID Software\Doom 3 DVD" (without quotes) for anyone else having this problem.