Casio CZ/ VZ/ FZ - Pro Series

>I've tried to do everything that the archives told me to do on this
>list but I keep having problems with MIDIOX and the VZ.
>
>Everytime I try to load in patches it says "LOAD ERROR-CHECK SYSTEM"

I had (I think) a similar problem once, I fixed it by increasing the output 
buffer size, or something like that.