Ok, I've got a working copy of Allegro 4.9.5 static build on windows. I am working on the "Monday" project and everything compiles fine...but when I run the program, I get this error:

libpng error: 0

This is NOT the error you get if it is loading a file that is not there, because this is that error:

libpng error: Invalid image color type specified

I had to fix the animation file, because of the line endings (something we need to look into for cross-platformness of "Monday")

This is the offending code:

if(loading)
{
  ALLEGRO_BITMAP *bitmap;
  std::string loadName = folder+line;
  printf("loading: %s\n",loadName.c_str()); // gives me this: loading: media/Gryphon_fly_u1.png
  bitmap = al_iio_load((folder+line).c_str());
  // dies during the al_iio_load(...) function

If I do a debug session I get:

Call Stack:
->ntdll.dll!77af3b6b()
[Frames below may be incorrect and/or missing, no symbols loaded for ntdll.dll]
msvcr90.dll
msvcrt.dll

This is on Vista with Visual Studio 9 2008.
Any suggestions, known problems, fixes, etc?!?::)

Edit:
Ok...I figured out what the problem was...(besides the text files needed to be using the windows style end of line markers). I had a jacked up version of libpng12.dll The solution was to go to the gimp ftp and grab a copy of libpng13.dll. You can rename it to libpng12.dll and it works beautifully! Hope that helps anyone else...8-)