AVAST-Popup a sign of a virus?

Hi,
i uses the avast pro edition on different pcs. only on my notebook, i get he information, that i have to klick the ok-button in a popup window to run avast. But at this time, there is also another popup, that tells me that my system is protected by avast? do i have to care about this?

i use avast premiere, os win 7, had no repair as far as i know

thank you!

What exact version of avast?
What is the os/sp?
Already tried a repair?

Do you have a screenshot of the pop-up? ???