about blank?

I just got rid of spyware or malware on computer,which is windows xp.
I had to use adaware and spybot,but it worked.
But now,everytime i try to go to yahoo,it says "ABOUT BLANK" and page wont open.
I also cant log into my personal banking accts or car insurance info on line anymore.
Is this all connected and what can i do?

thank you.

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