Mirax image wrapping

[ajwood at mta.ca]

Hi All,

I wrote a mirax-to-jpeg converted using openslide, and I just came  
across a nasty bug.

See http://i.imgur.com/HCuqttZ.png for conversions at levels 8, 16 and 32.

I can't find any problems in my code, so is there any chance it's a  
bug in OpenSlide? Or should I probably think think a little harder on  
my converter implementation? Has anyone seen anything like this before?

Thanks,
Andrew