For the last two days, Skype has been starting when I boot my computer. This is happening on both of my computers (both of which are Windows 7). Up until that point, Skype did not display this behavior. I checked to see that an update hadn't changed my settings, but the option to start with windows was still unchecked. I also went into msconfig and verified that it wasn't in the startup tab. What else could be causing it to start up on boot?