AVG viruslab popup uncloseable

Hello Mark,

I regret for the inconvenience. Please send me the screenshot(http://avgclick.me/getscreenshot) of the AVG pop-up you received, so we can check the same and assist you further. Also restart your computer and check if that close this AVG pop-up.

I have a popup on my screen from the AVG viruslab which I can't close. This is of huge concern as I need to be able to use my computer and without being able to close or minimise this I can only have windows behind it. Is there any way to close this?
Hello Mark,

I regret for the inconvenience. Please send me the screenshot(http://avgclick.me/getscreenshot) of the AVG pop-up you received, so we can check the same and assist you further. Also restart your computer and check if that close this AVG pop-up.

Mark, For your info, just in case that you are unaware, you can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions. 
AVG Guru