internet explorer not functioning?

hi, need help!! since updated tuesday my IE do not work properly. i had to loose google because that didnt work! i have Bing coming up with a website i typed in; xample;:: mendit.com Bing ? in my tab(this is wot im up against) it wont let me in websites if i type it in the search and address bar. the only time i can get in if i use the favourites bar, and then i cant get in some of them either. wots wrong with the IE? feels IE do not want to work.