gnome warning on png format

[Tamas Hegedus <hegedus med unc edu>]

Hi,

Something in gnome is corrupted in connection of reading 'png' image
format.

* If I want to use eog to see some png file I get the error: """Couldn't
recognize the image file format for file"""
With acrobat: """(acroread:21562): Gtk-WARNING **: Error loading theme 
icon for stock: Couldn't r ecognize the image file format for file 
'/usr/share/icons/Bluecurve/24x24/stock/ gtk-ok.png'"""

* Most of my GUI software (acrobat reader, eog, etc) can not display
their buttons defined in png format (just a red X)
* firefox can open png image files

* I have libpng10-1.0.16-1 and libpng-1.2.7-1.el4.2 installed
* I have gnome 2.8.0

I just can not figure out what I did; or maybe it was not me...
Thanks for your help in advance,
Tamas

--
Tamas Hegedus, PhD          | phone: (1) 919-966 0329
UNC - Biochem & Biophys     | fax:   (1) 919-966 5178
6107 Thurston-Bowles Bldg   | mailto:hegedus med unc edu
Chapel Hill, NC, 27599-7248 | http://biohegedus.org