How to close watermarks window in QGIS Openlayers plugin?

I'm using Quantum GIS Ver. 1.7.4. I have upgraded openlayers plugin 0.7 to 0.9. However when I open google satellite, a watermarks/copyright dialog box "Data Peta@2012 ..." appear in the middle of the screen. The close dialog box sign (X) appear on the top right of the dialog box but not active:

How can I close the dialog box?

Thanks.