Definately not that. I can put the ZIP adaptor on with the 16F628A, it'll program fine. Take the Adaptor off, put the iCSP lead on, try to program and that error comes up immediately, its as if its not even trying to program. Take the lead off, put the ZIP bag on, programs fine.

Any other ideas, can you send me a copy of your diagram so i can compare the ICSP side?

I've sent you a PM with me emails address if required.

Many thanks.

Steve