First thing I am trying is disabling all my add-ons and see how things go. As for malware or being infected, I have kaspersky internet security 2009 and I scan fully every sunday. I also have malwarebytes anti-malware and do full scan every tuesday. Finally, I have adaware free edition and do a full scan every thursday.
I also use spyware blaster. I doubt there are any malware issues.