Those feedback pop-ups will doubtless be generated by some Acer utility software that probably just needs re-installing. The only download I can see on the Acer website which looks relevant is the "Dritek Launch Manager". Go here, select your model through the drop-down boxes, then scroll down and click the "Application" tab. "Launch Manager" is third from top.
I can't provide a direct link to the drivers or applications page for your model because of the way their website is constructed.
Apologies if that software makes no difference. I once had an Acer Aspire but not now, so i can't replicate your problem to check what's needed.