Matchbox 0.5rc1 on Tuxscreen

Hi all -
         Well, I decided to jump from mb 0.2x right up to 0.5 - and it 
mostly worked after a bit of fiddling:
         1) configure doesn't believe the Tuxscreen has a working malloc... 
I used vim config.h to fix that! I'll look at the test code later..
         2) the (remove,add,move,hide) menu has two diagonal lines through 
it - maybe it is taking the underlying screen data and rotating it 45 
degrees?? Wish I could show it to you!
         3) When I added --enable-png to my configure line I got an error 
about a missing "png.h" file. Any idea where I could find it - and any of 
its friends?
         4) the minisys icon is a little smaller than in 0.2, so it's 
harder to see.
         Overall I am happy so far. I mainly need to learn how to make rxvt 
use a bigger font and nicer colors ---- tomorrow!
         Thanks

OBT Software Corp.
"For a more reliable product sooner."