Category Links Not Working In Firefox

[fotofx]

Strangest thing, the category links in the right sidebox are not working in Firefox or Opera. They work fine in IE and Safari.

Can't say I have ever seen this before.

Here is the page.

http://www.esmracing.com/store/

Any thoughts??

[gjh42]

stylesheet.css, line 762:

.columnRight {
  position: relative;
  z-index: -99;
}

Apparently IE does not interpret z-index correctly, while Firefox does and puts it beneath the wrapper so it can't be touched.

[fotofx]

Wow, thanks.. That looks like it.