An icon suddenly appeared on the system tray

Next to the time there is a yellow bell that blinks on and off.  When I put the cursor over it it says: "Take Advantage of the Hot Summer Sale"  I tried right clicking on it to see if I could delete it but it only has: Open message and leave it.

I have Ad-Aware which scans each time I start up my computer and I have Norton Anti-Virus with all the latest updates.

Can anyone tell me how this thing got on my computer and what is it?

Go to this Site and download CW Shredder

http://zerosrealm.com/

Please Read This First - Viruses & Spyware

Thank you Robert Millar.  I downloaded CW Shredder and ran it and rebooted but the icon is still there.
Should I do anything else?

have you downloaded anything recently? type msconfig in the run box and you will see what is starting up?

Merlin I haven't downloaded anything recently.  I put  msconfig in the run box but I can't see anything that I can identify that is related to this icon.

download spysweeper from www.webroot.com and scan for spys...etc..or have you installed any software recently..

Merlin I have Ad-aware.  Isn't that spyware?  It runs each time I start my computer. I haven't downloaded any software recently.

I can't believe it.  I finally decided to right click on it and it was an ad from my email program....incredimail that I've had for years and I was able to delete it.  I am so pissed and I'm going to let them know it.   Thanks everyone for trying to help me.  This is a great website.

IncrediMail IS spyware. If you can look at your firewall or router logs, take a long look.

If you had clicked the link I supplied you with and read the Administrators message you would have found more programs that could have helped you.