[ic] calculation error in calc and perl tag

[interchange-users@icdevgroup.org (Karsten Fuhrmann)]

I am using IC 4.8.6 on debian (woody) linux.

The problem is when i use a perl or calc tag :
things like [perl]return (1.5 * 200)[/perl] returns 200 intead of 300 and the same with
the calc tag.

I checked the Locale settings but found nothing, but this should not be related to a [perl] tag right ? 

But for example a perl -e "print (1.5 *200)" works perfect.
Where is the problem here in IC?