Keep getting random "switch to" error

Hi Dave,
Please provide us with more information (detailed description, screenshot) so we can better understand what issue you are dealing with.
Thanks

I'm not sure what causes this, but randomly when I click something in AVG it will pop up a window saying "Server Busy": "This action cannot be completed because the other program is busy. Choose 'Switch To' to activate the busy program and correct the problem."

Then there are buttons "Switch To…", "Retry", and "Cancel", and no matter what I click, the Windows start menu pops up. Sometimes everything goes away, sometimes it's a repetitive loop.

Hi Dave,
Please provide us with more information (detailed description, screenshot) so we can better understand what issue you are dealing with.
Thanks