Sounds like it may be a DNS configuration problem.
You're leaping to conclusions with no factual basis. M. Zebby hasn't actually proven that that xyr WWW browser problem is a DNS problem
. I can think of three potential non-DNS causes for such a problem off the top of my head, and those are just for starters. We have no information for narrowing the problem down.
Your DNS server(s) should be configured with Forwarders that point to your ISP DNS servers.
Balderdash. This is received wisdom that is wrong. There's nothing universally wrong with doing query resolution onesself, and there are good reasons for doing so. The decision about forwarding is a complex one
, with factors for and against that have to be weighed. Simplistic "You should always do X." recipes are just plain wrong. Moreover, please think about what a DNS problem would cause before leaping to conclusions. M. Zebby hasn't proven that this is a DNS problem in the first place, and in fact the datum that other machines have no WWW browser problems indicates that this most certainly isn't a problem that is in any way affected by whether or not xyr proxy DNS server is doing forwarding.
"Doctor, I have a pain in my elbow."
"Ah, you must have cancer of the liver. Here's what to do when one has cancer of the liver ..."