Problems Installing-Next Button greyed out @ Key

[sonnenkind]

Title says it all, when i try to install Titan Quest (Gold Edition, German Version)
and are prompted to enter my CD-Key, the Next-Button is greyed out and i cant proceed.

Forum/Google search didn't gave me any solutions.

Help appreciated

[JordanT43]

this happened to me just yesterday trying using the CD key on the back tf the second language booklets if u have them with the german version. for me i installed TQ fine then next what greyed out at IT CD key but i put in the CD KEY on the back of the french booklet and that worked

[sonnenkind]

I just read in another Forum that THQ is aware of that problem.
Seems like i had to wait for an answer from support, but thanks anyway.