Problem solved. It turns out that the jquery.js file was being referenced more than once overall (in a pretty large collection of inter-related dynamic pages).
In one dynamic page there was this: <script type="text/javascript" src="./scripts/jquery.js"></script> <script type="text/javascript" src="./scripts/jquery.corners.js"></ script> Then in another one there was this: <script type="text/javascript" src="./scripts/jquery.js"></script> After I re-organized so that jquery.js was referenced only once, then the problem went away.
