programming error: cyclic dependency

[Peter O'Doherty]

Hi list,
After updating my system to Ubuntu 11.10 (although I can't see why this 
is relevant but this is the only change I've made to the system 
recently), code which previously output no error is full of these errors:

warning: programming error: cyclic dependency: calculation-in-progress 
encountered for #'positions (Beam)

I don't see anything strange in the final pdf file so is this warning to 
be ignored?

Many thanks,
Peter

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