I am not a computer genius and I use my PC just to send or receive emails. Recently while accessing my emails, I noticed these pop ups (which are advertising some product) came up and automatically divert the browser to that page. It has become a regular feature. I am not sure if it is a virus or any other glitch. I don’t have any antivirus software installed on my system and now I am looking for one. I googled it and found that Norton antivirus matches my requirement and found a good deal here http://www.checkoutsoftware.com/symantec/norton-antivirus-2008_p4232 . I wanted to know that apart from buying it is there any other way out? I use windows XP home 32 bit with 256 MB of RAM.