This does not sound like a software probleme from ICE or the panoviewers. It would be more likely that your hardware is somehow not capable of displaying it properly, maybe because the file is to large.
I use the panoviewer within panoweaver's trial version and it works without any problems (Panorama with 140 images resized to 8000*4000)
In general if you do gigapixel panorama photosynth should work well.
[Edit] If the file would really be corrupted you would not be able to open it at all or the unzoomed version would show significant errors.