lag

During the afternoon which is 4 pm I use Mozilla and stack around 30 guru sites under one browser. The site than lags and they all say Page Can't Be Found Due To Server, refreshing doesn't help it reloading all pages they than get the same message.

It is now 9:32 and everything is fun, no lag, stacked 30 sites, was the site being worked on? Or does Mozilla have a more cause of lag than the other browsers?

There's been intermottent occurences of this throughout the day and, for the better part, of the week. Inde's looking into it and I promise we know it's happening

I have a question about this topic and don't want to start a new thread...A while back there was a lot of lag, GWG was hardly usable then it stopped for a while...
I recently reformatted and the lag started again, Is it because GWG has been lagging more or is it my computer?
Thanks

(Im not trying to insult gwg or anything like that blah blah blah)