1. If some of your instruments don't work in VE Pro, just load a VST-host in VE Pro (for example "bidule VST" or "chainer VST") and try loading the non-working instruments inside this VST-host instance. With this little trick "Virtual Bassist" and "Virtual Guitarist" works fine in VE Pro on my system.
2. VE Pro works fine together with jbridge. This way you can use 32-bit VSTi inside the 64-bit VE Pro Server. Why doing this? Because the 32-bit VE Pro Server is limited to 4 GB but using the 64-bit VE Pro Server you can insert unlimited instruments.
3. If Cubase crashes when you want to insert VE Pro with 128 Audio output channels, try setting "latency = 1 buffer" (default is 2 buffer). You find this parameter in the connection window when you insert "Vienna Ensemble Pro" as VST instrument in cubase.
Please feel free to continue this list [:)]
Best regards,
Peter