Marcellieus, I use Firefox with Windows XP and Steve's catalogue page works perfectly. I also tried it with IE 8, again under XP and it works fine.
I tried turning off Javascript in Firefox and the menu still worked fine.
Willieg, I suspect there is a setting in your browser that is causing problems. Sorry I can't be of more help but do hope you can solve your problem, Steve's page is a great resource.
Jim