Looks like a lot of VISTA machines are affected -- the web browser would time out and internet surfing would slow to a crawl. This problem is not linked to a specific browser... it affects IE, FireFox, Opera, as well as Chrome. This is not a problem of the internet, router, or network card. All of the above have proved to be ok. Internet-dependent Applications can run with no problem. e.g. TWS, TOS or email are not affected. This problem is strictly limited to browsers on VISTA. No cause or remedy has been found yet, and the problem is spreading.