I've had to use IE for a few eBay things lately as the menus (you know the little arrow next to items to show various things you can do) do not work in Firefox.
Strangely, if I log onto the eBay US, and use the My eBay on the US site, everything works fine. I use the Australian version (well, I am in Australia), and its not working. The US one is fine.
I think I may fire off an email to eBay AU. Thanks guys!