grass4.1: i.rectify2 question

Hi grasshoppers!
We are going to use i.rectify2 to correct
LANDSAT-TM imagery. Has anyone used it?
Any problem? any advice?
Thanks

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If you plan to use i.vpoints before i.rectify2, PLEASE let me know if
you have any problem with the ZOOM option for the vector file. I have
had trouble with zooming into the vector map I'm using to select points
from and I want to know if the bug is "local" or worldwide.....

Thank you,

--
R. Brian Culpepper Research Assistant
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Center for Advanced Spatial Technologies (fax) 501 575-3846
Rm. 214 Ozark Hall (work) 501 575-6159
University of Arkansas brian@cast.uark.edu
Fayetteville, AR 72701

All opinions are my own and do not necessarily reflect those of the
Center for Advanced Spatial Technologies or the University of Arkansas.