Parts of web pages suddenly unclickable.

[Decaf]

Running Snow Leopard 10.6.8, Java is as up to date as it can be, plug-ins are all active, problem exists on Seamonkey and Firefox but not Safari (where I don't have NoScript installed - this may be a coincidence, of course).

When I try and click on parts of a web page nothing happens and some times parts of the page don't show up. Some examples:

The 'sign in' at the top of eBay's main page isn't there.

One of the buttons of the main NPR.com page is there but I can't click it.

Some buttons show a change in color when my pointer moves over them but don't respond to a click.

I'm also unable to add or manage bookmarks.

I called Apple and they said that this is a browser problem. Everything was fine until yesterday (when there was a NoScript update) and the rest of my systems are running perfectly. I've run Onyx but that didn't help.

Does anyone have any ideas about this? Any help would be appreciated, thanks.

[barbaz]

if you're using noscript 2.6.8.15rc5, it's buggy, get rid of it and update to latest development build
otherwise, Standard Diagnostic

[Decaf]

Thanks Barbaz, much appreciated.