Well, you'll notice before as always in the address bar, there is only www.yahoo.com. When you get the New Yahoo Homepage its= m.www.yahoo.com. So you try to remove the letter m from the www.yahoo.com part, right. It doesnt solve it.
What you do is turn on disc cleanup and remove all temporary files.
Then go into Internet Options and Delete Browsing History Files (cookies, temp files, form data, passwords, history.) Its basic internet stuff your dealing with.
After all clean-up is done, go to the Address Bar and type in www.yahoo.com. It should direct you to the Old Yahoo or Classic Yahoo Homepage. Hopefully that solves the problem.
I dont know why yahoo cant't get the message, we just dont want your new web page. aw-ight. That should stick it to the man.