Some years ago I installed Adobe Acrobat 9 Pro. A couple of weeks ago when I tried to scan a document with Adobe Acrobat 9.0 Pro I received the message that the product license was expired; moreover the message required me to uninstall Acrobat, to reinstall again. I did so and Acrobat worked properly. However, today when I tried to scan from Acrobat I received again the same messatge I received two weeks ago. I followed again instructions and I wonder if this problem will happen again. Is there any way to solve the problem? Any help would be much appreciated.