Cognos Impromptu 7.4

Hi,

Does anyone have succesfully thinapped cognos 7.4 on windows 7 32bit?

I'm getting an error (Error -55 database activation cancelled) and i can't connect to the database.

The strange is when i start the Thinapp Log Monitor to see what is going wrong the connection to the database works fine.

Does anyone have an idea to fix this?

Thanks in advance.

Martijn