Help with Adobe Acrobat Pro XI license issue

I purchased Adobe Acrobat Pro XI. I have been using it on one of my computers for the last two years. I decided to purchase a single license of the Creative Cloud Suite which I use on a different computer. Since that purchase, I have been unable to use my regular version of Acrobat Pro XI. I have gone thru support and they can't help me and told me to ask the forums. I have un-installed the program and re-installed using the installer for Adobe Acrobat Pro and the installation has gone perfectly. I have entered my license key, which was accepted and the install completed. When I try to open a pdf, I get a Creative Cloud pop up box stating I need to log out of my other computer in order to use this license, or I can continue on a trial basis. It seems that my regular license has been over ridden by the Creative Cloud Suite. Adobe support cannot help me. Does anyone have any recommendations?