I have an excel sheet in an older vesion, probably Excel 2003, I open
this in Vista but where my cells say "=qcom(blah, blah) it's
evaluating as #NAME like it doesn't recognise the function
"qcom" (which is there)
If i hit Alt-F11, I can see in the "modules" section the relevant page
which includes the qcom function.

I suspect this is some feature of Vista that's disallowing these
functions to run, but how to enable it?
thanks in advance
Lee