I'm not familiar with misr.pro, and I find a couple of different software tools on the MISR web site. Are you getting the MISR tools for ENVI from the ASDC site at
http://eosweb.larc.nasa.g...tools/envi_tool.html ? That's called misr_envi.pro, and it looks like there's a pretty good Users Guide on that site, which goes through the rather complicated process of getting that tool properly installed.
Or are you using something else?
- Peg
Exelis VIS