Unnecessary "Account count restriction" message

Each time I start up eM Client Pro, I get the message
“Account count restriction”, telling me I am restricted to 2 accounts, even after I switched from the free version to the Pro version. In fact I have 4 accounts, all working OK. Please let me know how I remove this message.

Richard Gray

Did you re-activate eM Client using the PRO activation key?

Have done that and everything now OK. Thanks for your help.