Hi Everyone - I hope someone can help me with this one. I have found 2 strange things happening which make me think I may have a virus or something in my system. 1) Whenever I go to certain websites, the adds that appear on the site normally are being changed to different websites that are not affiliated with the webpage. Example - My child goes to Nick JR website to play games, but all of a sudden, the adds that appear on the right hand side, or at the bottom of the page, change and are now variations of a similar add (not child friendly-to put in mildly). This is very disturbing as I don't want my child to see this sort of add. I rightclicked on the add and selected view source and got the following info: <SCRIPT src="http://ib.adnxs.com/ttj?id=1356197&size=728x90" TYPE="text/javascript"></SCRIPT> It's as if there is something in my computer overwriting the normal adds shown on the sites with another set of ads. Note-I have Norton 360 and have just finished running Malwarebytes application which will remove about 14 items found. 2) When I go to sites with auto drop down menus (like at the top of this site) when I highlight the tab and the drop down list appears with the options for the particular tab, I cannot move my mouse to select one of the drop down options. The options just disappear before I can select one of them with the mouse. I am not sure if this is somehow related to item#1 or if it's a stand alone issue. Would appreciate any assistance you can provide.