Occasionally blocked off google, yahoo and a few other sites

Strange happenings here. I find every so often during a day, I cannot access sites related to yahoo or google. That includes mail or news, anything like that. I’m able to access Bing and Blekko, but some other sites are difficult to access. The homepage of IE was briefly changed to Bing, but I’ve been able to change that back.

Malwarebytes found crossrider files and I quarantined and deleted those. Problem persists. In regular mode or safe mode, SuperSpyware hasn’t found anything else. Avast hasn’t found a thing. Microsoft malware hasn’t found a thing. I’m not near a usage limit with my provider.

It doesn’t happen all the time. Maybe at a couple of points, but many aren’t even at peak times. Other times, I can hit every site I need, yahoo and google included. Not sure what’s happening here.

Any ideas?

try clean Your browsers With AdwCleaner http://www.bleepingcomputer.com/download/adwcleaner/

any change?

Looks like it hit another crossrider with a couple of infected files to go with it. Right now, looking good. Keeping my fingers crossed.

Thanks