I'm running VE Pro Server (32-bit) version 4.0.4881. I have this on my dual-core Windows x64 system (SP2, 8GB of RAM). I can start up from a cold boot and see my VSTi plug-ins. I can load some instruments and save that as a metaframe. But if I close VE Pro, open it again and open that metaframe, it gives me the error message "Missing Plug-in: xxx." It also shows that I have no VSTi plug-ins when I right click in the column. I have to restart the computer to see my plug-ins again. I have tried this with NI Kontakt 18.104.22.168, TASCAM GVI 3.60 and GVI 4.10.
I tried moving my plug-ins to "C:\VST plug-ins". If there is a preferred place for VE Pro, please let me know. Thanks for your help.