The libpng1.4.4 broke Frozen Bubble on my VL6 SOHO Deluxe. It wouldn't start and gave an error message that I did not save. I went back to 1.2.37 and Frozen Bubble is happy again. Maybe we need a warning on libpng1.4.4.
SOHO is recent enough that it is probably worth persevering with. I'll see if I can find time to rebuild Frozen Bubble against the new version, and watch out for any other breakages.
For VL6.0 Standard, its not worth trying to fix - too much breakage. I'll move the package to the 6.0soho repo in the next few days.