A couple of days ago some websites stopped working for me. Google, Yahoo and a few others stopped working (mostly search engines) including the BitDefender forum. I discovered that if I go to task manager & end process "explorer.exe" the websites all start working again. I can't keep doing this though as it leads to me being unable to access all of the files on my computer until i reboot, which leads to the problem recurring. I've done some searching around various forums and downloading and tried a few different things. I've also run a few different anti virus programs but have had no luck so far. I'm not sure if i have a virus or if the problem is something more simple.
Any help would be much appreciated