Hi DS
Why didn't the deactivation work on the old PC? Did you still have a free DrDepth license for the new PC, otherwise you cannot activate the software. When purchasing DrDepth, you got two licenses, so if you still have a working version, then clone the hard drive. Either you can then use this in the new PC or you deactivate the license on the clone, then you have a license again (the game can be repeated as often as you like). Of course you can also try to acquire a new license from HB (goodwill or purchase).
mvh
Rüdiger