Hi DigitalKitty,

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Following your message I started to prepare example code by cutting out the offending bits from my scripts (this is a client-server situation). Half way through I realised that for one of my methods I didn't pass the return set through freeze, therefore the error when I tried to thaw it -- whoops!

Thanks for the help. I think it's time to stop for the night as I'm missing simple errors that are staring me in the face.

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