Ok, I've done a search but couldn't find a problem quite like this one.
I browse the web using IE7 or Firefox, mainly FF, but I get the same issue with both.
On both browsers I have a 3 tab homepage set.
Frequently I will not be able to connect to the first 2 websites, whilst the other one will connect.
This will last for a few minutes, then I can refresh and they will connect. Always together, never individually.
Now I own one of these websites, so as far as I know they don't share a server.
What could cause this, and how can I fix it?
Also, sometimes loading a major site like BBC Sport in the same tab and then clickng home again will fix it.