I'll go w a y out on a limb and blame this on a bug in the regex engine.

m/(.*?$CGI::SL)*(.*)(?=$)/ is pretty, um, well, isn't pretty. ;) m/([^$CGI::SL]+)$/ is going to give the regex engine much fewer fits. See if that fixes things (that requires that you use $1 instead of $2 or just use my( $localfilename )= m/... instead).

        - tye (but my friends call me "Tye")