Has my computer been compromised?

  wobbler 20:04 08 Sep 2009
Locked

Strange one this. My desktop which is wired to my router appears to have a probem. 2 of my bank accounts and ebay have both requested my secuity details when i try and logon, the sites url seem genuine. Why i am suspicious is that my laptop which is wireless can still access these sites using my normal security details. When i try and logon to ebay it says my account has been compromised and i need to go through its security again. Is it my pc thats at fault or something more sinister?

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