Weird thing on the taskbar

[Marippe]

I keep getting this window that appears on my taskbar every now and then. It's not a pop-up since nothing appears on the screen, but only in the taskbar. It has no name (just a blue and white box thing on the left) and only stays for a few seconds. It's getting a little annoying though because it stops my screen saver and returns it back to the desktop. If anyone has any clue what this is and/or how to get rid of it, please let me know. Thank you!

[panboy]

Post a hijack this log , so we can see if there are any Weird Programs running on your Computer

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[Fed]

It could be a notification from your firewall, do you have one & what is it?