You use Google Chrome right?
1) Top right corner click the Spanner "Settings".
2) Go down the Navigation Bar, and click on "Options".
3) A New Tab Should open.
4) You'll see 3 options, (To the left), Basics, Personal Stuff and Under the Hood.
5) Click on "Under the Hood".
6) You'll see button, pretty much central to the page saying "Clear Browsing Data ... "
7) Click it.
8 ) a box should open, Use the settings :
9) And click clear.
Hopefully this worked?