Safari goes to wrong website typed in URL
This past weekend, I was trying to go to Twitter and typed www.twitter.com in the URL window and Safari went to some AOL Realty site (that I have never been to) and even after the page loaded, it clearly said twitter.com on the URL window. Another time this weekend, again trying to go to Twitter and typing it in the URL window, Safari went to Chrysler's website (again twitter.com was what the URL window said after the page got done loading).
What the heck is up with this????? Safari was slow to load and getting 404 errors when I first updated it to 5, so I've done all of the cache and cooking clearing, reset Safari, reset permissions, etc.
Again, I use Safari as my default browser, so when this happens I will open Firefox and sometimes it will do the same thing that Safari is doing and sometimes it won't. So, not sure if it's a browser specific problem or an OSX problem. My Macbook Pro is about 6 months old and I don't visit sites that are spam or hack type sites at all.
I use my Macbook Pro both at home and at work, so it happens with both my home and work wireless routers.
Help!
Macbook Pro, Mac OS X (10.6.4)