Any chance software had a virus ?

My email sends out names I never heard of, Facebook keeps telling me to change password, Amazon changed my user name. Everything was fine then I bought a cheap Office 10 on Ebay where you load Office 10 from the Web and they send you the unlock code. Any chance this could be the problem ??? the cost was 5 bucks. What should I do. Anti Virus picks up nothing wrong Thanks Very Much

Was it an actual MS CD or a burnt CD? I would be leery about paying 5 bucks for office anywhere for that cheap. However, I can get it from MS with the place I work at for 10 bucks.

No it wasn't a CD, you downloaded it from the web

Then it very well could be an infected download.