after upgrading from 3.0.5 to 4.0.1 (vcl with source) I get an AV in one of my applications when I try to load an image file. The error occurs in line 621 of pngfilt.pas (png_create_read_struct) at address 00D905FA.
Because I'm not able to reproduce the problem in a simple programm (the same png image is loaded without problems) and I could not see much changes in the png area I wonder if anybody else have ever come accross this error and/or have any idea what happens here.
Other image formats work without problems (tried bmp, tif, gif, jpg). (D7, Win2K)
Any hint is wellcome. With kind regards, Ruediger Kabbasch