If I've done something that makes my small image zooms quit working, shouldn't re-installing Image Handler fix the problem? I overwrote all of Image Handler's files, but I'm still getting no zoom action on my images.

I'm getting the following two error messages from Firefox:

hidetrail is not defined
onmouseover(mouseover clientX=0, clientY=0)index.php (line 1)

showtrail is not defined
onmouseover(mouseover clientX=0, clientY=0)index.php (line 1)


Advice would be appreciated.