[Image-SIG] PIL (re)installation difficulty

[danny at knowledgetooldesign.com]

Having proceeded with the "python setup.py install" step for installing
PIL *without* JPEG support (because I didn't have the jpeg development
libraries installed), I am now apparently needing to redo the installation
and am not sure how to go about it

After installing the devlopment libraries, I performed the installation
again without making changes to the system; PIL's selftest.py passed
55/55. However, when using ATPhoto (Plone Product relying on PIL), it does
fine with PNG's but not with JPG's.

Can someone point me in the right direction to solving this?

Danny Morgan