I don't know if the popup is legit, but it wouldn't hurt do search your system for pxwma.dll and delete it if you find it --
http://castlecops.com/tk1907-pxwma_dll.html
dlh6213 27 Posting Maven Team Colleague
dlh6213 27 Posting Maven Team Colleague
dlh6213 27 Posting Maven Team Colleague
dlh6213 27 Posting Maven Team Colleague
dlh6213 27 Posting Maven Team Colleague