BCC5, Premiere CS3 and Premiere AE

Hello, everybody

ich have just installed the trial of BCC5. I really do like the creative things you can do with this all those effects to my projects and i really would like to buy it. However i experienced several serious crashes when using BCC5 within Premiere CS3.

First my configuration: Mac pro, 2*2,8 Ghz Xeon, 8 GB RAM, Mac OS 10.5.4, Adobe latest updates (Premiere 3.20), Nvidia G8800GT (standard configuration)

Every i time i use one of the OpenGL effects in Premiere, the effect will be applied, but if i want to do anything to the parameters or just click the name of the effect leads to a final crash of premiere. I also experienced a rather strange issue with the help, open and save box hidden under the name. This box is displayed totally black without any content for all filters. However it is still clickable. If i switch over to After Effects however everything seems to be fine. I do see the info box, i can switch or change parameters, the playback will work, even if using the same footage.

Using other effects than opengl seems to work better, there are no crashes, when i change parameters, but i also see random crashes when i do a playback with a boris filter applied.

Any ideas about this? Many thanks for your help.
Michael