Months ago i installed the application,inserted the serial code for the activation and started using it flawlessly...
Now,every now and then when i launch photoshop,it asks me to register again,so i enter the code to authenticate.
The problem is that i have to repeat such procedure after 3 to 4 times i run it without getting the validation window.
It happens so: i validate the app > launch it like 3-4 times in the days > 4th or 5th time i run it,there you have the validation window again.
It's systematic...this occurs over and over.

In which way could i solve the hassle?