I am trying to use the main menu system on this website

http://www.caernarfontown.net/

I get the main menu displayed, but there should be a series of drop down sub menus which do not appear. I have accessed the site on other PCs with no problem. It just seems to be mine! I have followed the advice on the website and loaded the latest version of Java. I have ensured it is enabled. I have even placed the website in the trusted sites under the Security tab and set the security level as low. No resolution!

Can anyone suggest anyhting else to try.

Thanks

In internet options / advanced is Java Sun ticked or Microsoft VM?
You could also try another browser, I use slimbrowser which works off IE without most of the problems http://www.flashpeak.com/sbrowser/ or Firefox http://www.mozilla.com/en-US/firefox/