Problems to add terms from Studio 2014 SP2

Hello, all of a sudden I have problems with adding terms to Multiterm out of the editor window in Trados. I got the Studio 2014 SP2. There is no error message, the field "add term" just stays blank. I understand that it can´t be the JAVA problem any more. My browser is Chrome and it´s up-to-date. I read related questions but couldn´t figure out what my problem could be. Anything else I should check? Thanks!