I just downloaded and installed Paint.NET 2.6 and it shows the same behavior. Furthermore, when I hover the mouse over the menubar File - Acquire ->, the program WIAPROXY32.EXE, obivously part of Paint.Net, wants to have access to the IP's 216.126.201.89 and 66.249.93.104, which seem to be usertrust.com and google.com. This is reproducible. I'm an experienced user and I am sure I don't have any malware on my PC.