Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1) Gecko/20090624 Firefox/3.5 (.NET CLR 3.5.30729)
I don’t think this is a problem with Firefox because IE version 8.0.6001 has similar problems.
The problem appears to be that I cannot access websites on a consistent basis.
One minute I can access Yahoo (as an example) and all of Yahoo’s content. The next minute (or hour) I get a “Firefox can't find the server at www.yahoo.com” error. Other times I can access Yahoo’s homepage but when I click on Yahoo news (as an example) I get that same error. Or I can get to Yahoo news but the media content is blank. This behavior seems completely random and happens on most sites I visit – Comedy Central, Digg, Facebook, Flickr, Geeks to Go, etc. Occasionally, like on Facebook, some images display but others do not – like certain friends’ avatars will appear but others are blank.
My wife, on the other hand, has no problems at all.