Hey, I'm not a tech expert, but I had a similar problem with my HP with a dial up connection. If I clicked links, it would go to the webpage immediately, but if I typed a URL into the address line and pressed return, there would be a minute or longer delay before it would go to the website. I don't have time to explain my process of trying to fix this - what I can tell you is it had something to do with the HP Computer running XP and conflicts with the HP Imaging software, NOT the dial up service or the browser (Explorer). Anyway, that's a possibility... just 'cuz the description of your problem sounds very familiar to me. Even with dial-up, you should be able to get to a page withing 1-10 seconds so with DSL it should be way faster than what you're getting!
I have an HP pavilion with XP and a 9 year old pentium II machine with ME running SBC/Yahoo DSL internet. It is fast enough when It is actually communicating. The problem is, after I request a URL or enter a form there are often long periods (up to 45 sec.) where the modem just sits there doing nothing. Is this just SBC swapping me out or am I doing something wrong? Does any other SBC user have the same experience? Does Cable have the same problem?