Acrobat Standard 8 not responding

So i got a license of Acrobat Standard 8 installed on my Windows Server 2008 but for all my users on WTS it keeps not responding.

I open the software, start using and it just stop responding, so i close, and open again and do the same thing. Sometimes it stop respoding even before i start using it.

Any ideas ?

My server is OK, since any other program works fine, such as office and ERP.