I'm using Devastor v1.3.1 (also happens with Toraverb v1.3.1) with Audition CS6 on Windows 7 x64 Home Premium SP1.
When I click browse button, instead of the presets, the background is showed.

I use both (Devastor and Toraverb) with other VST hosts and work good.
¿Any suggestions? Thanks.