Is this something I should be concerned about?

[Resetti's Replicas]

I don't visit a lot of forums so I don't know where else to put this.  Sometimes when I close up all my browser window, this thing will be hiding underneath.  Google "IMinent" and "IMbooster" gave nothing.  Is it a virus?  I ask because the menu up top makes it look like it's not a Chrome window, but it only appears after a browsing session.  I've run antivirus and uninstalled all non essential add-ons but it's still there.  Anyone else who's experienced this problem?

[Team 9]

hmmmm.
try finding the directory it's installed to, deleting it and then restarting your machine.
i had a smilar problem with adware, it's a small matter.

[Resetti's Replicas]

Right clicking and selecting "Properties" says that it's from a site called imbui.iminent.com.  So maybe put that on your blacklist.

[HurricaneAndrew]

Have you recently installed some sort of instant messenger? If so, that could possibly be something to do with it.

[Scourge of teh Galaxy]

Smells like adware to me. Locate it, remove it, and install adblock

It won't do any harm, but it is annoying as