You are welcome... However be warned that this means no bytes can be written that are greater than 0x7F using the outb function. The actual bug appears to be that the isa scanning routine is passing in bytes that have values greater than 0xFF, which means they are not bytes. However & 0xFF does not fix the error in the outb routine. On Sun, 08 Jun 2003 16:19:59 -0400 "Mark D. Studebaker " <mds at paradyne.com> wrote: mds> mds> checked in. mds> thank you very much. mds> mds> Jim Morris wrote: mds> > This seems to happen on newer perl versions. It is fatal in as much as mds> > the sensors are not detected. The solution appears to be to simply add & mds> > 0x7f to the pack statement at line 1138 of sensors_detect... mds> > mds> > sub outb mds> > { mds> > my $towrite = pack( "C", $_[1] & 0x7f); mds> > mds> > mds> > hope this helps mds> > mds> -- Jim Morris morris at wolfman.com