![User Image](https://secure.gravatar.com/avatar/2240f864cd49881c4ef09354ac7ea3c0/?s=48&d=https://images.binaryfortress.com/General/UnknownUser1024.png)
Ann_Byrne
1 discussion post
I installed Display Fusion Pro on 7 machines all running XP Pro SP3. The license key for each machine keeps disappearing. I re-enter it; it stays for a few days; and then it disappears again. Today, when I went to reenter the key for a particular machine, I got an error message telling me that the key was invalid. What do I need to do to get the license keys to stick?!
Are these trial licenses or full, purchased licenses? Do you have any programs that perform any kind of registry "clean-up"?