I never had problems with the free version of FontExplorer X, but I've had enough troubles with the pro version that I'm actually thinking of switching back to Fusion. What's the problem?
The benefit of FEX is that it activates requested fonts by applications. The problem is that it starts requesting erroneous fonts. The problem seems to be with Word and most Adobe Suite applications. FEX requests to activate "fonts" it cannot find on your system which are nothing but long strings of numbers like:
48958679291
Or when choosing a font already open within the application (like Adobe Caslon Bold) it requests the same font but then adds some extraneous characters to it and wants to open it as
Adobe Caslon- ASynthCaslonBold...

The advice from tech support it is to disable font request in all applications that give you trouble! Right now, every art application – for which I have the real need for font activation– is giving me trouble: Fireworks, Word, and Photoshop seem to be the worst offenders.

Funny this was never a problem with the free version.

I welcome any solution...