I have a problem with certain brooktrout images, wich aren't correctly viewable in xnview. Also converting this image to another format (i.e. TIFF) produces a corrupt image:
This is what it looks like in XNView:

This is what it should look like:

I have noted that brooktrout images that are viewed correctly, are recognized as 'Brooktrout 301 (RGB) - CCITT Group 3' incorrect images are recognized as ''Brooktrout 301 (RGB) - CCITT Group 3-2D' (but i suspect they also should be the one without the 2D option...)
Converting the image with nconvert shows the same unwanted behaviour
Here is a link to a sample brooktrout file: http://rapidshare.com/files/416214516/B024EBD8.301
Can you help me, or even better, fix this problem?
Extra info:
System used: Windows XP 32bit SP3
XnView Version: 1.97.6
Libformat Version: 5.70