When browsing PPM, some advertisement popups. Why?
This might probably be caused by spyware. One thing we suggest is getting Ad-aware, a program that searches your computer for programs that are installed without your knowledge. These programs are used to spy on you and your web browsing habits, and send personal information about you to companies. Some of these programs cause advertising popups to appear randomly, based on a number of factors. Other causes could be windows open in the background, hidden offscreen, or even hit counters or CGI scripts from off-site that cause popups to appear.