Safari and Mozilla will not load Yahoo

I have a MAC G4 Powerbook, recently installed 10.5.6 Leopard. All web sites load fine as usual EXCEPT yahoo. Yahoo will not load in any web browser (but all other web sites, facebook etc will.) Have already contacted Yahoo, Apple, and guessing it might have something to do with script on yahoo site. Already updated all software on computer, checked firewall, virus scan, and Internet settings. Any other suggestions out there on how to get my browsers to load yahoo? Thanks!

Have you tried loading Yahoo on another network? In other words, not your usual ISP? It could be something that's occurring with your ISP and may not have anything to do with scripting or your web browser.

Regards.

Thank you for your reply! Yes, I have tried other browsers on PC and other networks. It's only on my MAC that yahoo is not loading.

When it does load yahoo, the text is all scrambled, or just a blank page that says done. But on any other PC or netwrok, yahoo works fine.

Update: Found problem: has to do with plug-ins in my browser. Safri now worked fine, downloaded updated version of Firefox.