Phishing email virus ???

Hi

I've had two occasions in the last couple of weeks where a message has been sent from my email address on my home PC to about a dozen of my contacts with an obvious phishing link on it. Some of those contacts are work addresses - who I have never emailed from my home PC - and some I'm pretty sure I've never emailed although I do recognise who they are (lovefilm, google checkout). The message also appears in my inbox and the from box identifies it as being sent from - me !!!

The only thing I could think of was that for the first time in months I've used Skype twice in the last two weeks and while last nights random email definitely happened while I was using Skype, the first instance I can only say might have happened last time I used Skype two weeks ago (I dleted the email the first time this happened).

The message last night was (and please don't click on the link):

Hello friend!
is everything ok
This is an interesting read hxxp://kierek.home.pl/profile/24WayneDoyle/
see you soon


I've already done a bit of browsing and read that there has been an issue with phishing on Skype and have removed the file shared.xml from my Skype folders. I've also run virus checkers in normal and safe mode and found nothing.

Does this situation sound familiar to anyone ??? Is it even a Skype related problem or am I being attacked from elsewhere ???

Thanks for any advice anyone can offer.

DD