Jagerman, thanks for your answer.

I checked for extra spaces, newslines, everything, but it still did't work.

And I found some very strange behaviour: I copied the global hostlookup into a new global testsub (which strangely enough was working), then I deleted hostlookup and copied testsub into hostlookup. Now, hostlookup works as it used to.

Very strange...

Ivan
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Iyengar Yoga Resources / GT Plugins