I have done the same thing and also have the tray icon. It serves a pupose, right click on it, then left click on the text box and a window will surface. Click on the "Stop" button and you will get an idea of why you have a tray icon.
Basically I think it has to do with the hot-swap properties of all the readers, your system treats them as drives and wants to remind you not to remove them during mid-transfer.
No, I don't know how to remove it...don't want to.
....WW (5.0)