Png picture file problem



png pic file failed to show up while gif is ok
i have set my php to 5
im having the problem in pligg (self-install) one-click install was ok…but this is not the first time i have the similar problem…i have the same problem with my wordpress(one-click install) where png file cannot be shown…only shown up red cross…

i’ve tested delete and re-transfer

problem on the FTP transfer? (tried many times though)
it was fine in my localhost
the pligg one-click install also fine
while the problem in WP one-click install is that i use custom template which involve me transfer png file from my comp tp dreamhost…



by transfering the png files using binary mode solve the problem