Seems Chrome is attacked

Hello,

I have an annoying page Esurf.biz on my Chrome which changes my search engine from Google. I have tried everything to get rid of it but to no avail. My friends told me that it is a malware. Some article from google results defied it as adware like this one: http://www.pccaretips.com/blog/how-to-remove-esurf-biz-from-chrome-ie-firefox.html (which i pick up randomly) Now, I am totally frustrated now. Is there a way to remove Esurf.biz from my Chrome? By the way, I have reinstalled my Chrome, but it didn't help!!!! I have no ideas now. Could you give me some suggestions?