Hi,
I've just tested - and yes, if I restart the IIS service it fixes the problem. This obviously isn't a practical solution for me - the webserver runs many other web sites as well.
It's almost definately application caching or something - if I leave it a while (and the application stops/starts due to the .NET lifecycle) it starts to work.
Incidently - shouldn't it always be possible to cast an integer to a string (unless its null)?
Cheers
Richard
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