Enhanced Browsing Security, "Changes to Functionality in Microsoft Windows XP Service Pack 2."
"How to troubleshoot problems accessing secure Web pages with Internet Explorer 6 Service Pack 2 (Q870700)."
I'll start off describing my system:
HP Pavilion, Athlon XP 2000+ overclocked to 2600+, 512 MB RAM, 30 GB HD with 21 GB free, Windows XP SP2
Spybot resident in background as well as Spyware Blaster, AVG anti-virus 7.0, also run Ad-Aware SE frequently.
Have Juno email account, used to have dialup Web account with them. Use Juno's email software to download my email, use DSL from MCI. When I first got DSL 6 months ago, I immediately had a couple of viruses and several spyware issues, but have long fixed them and the Internet worked fine for 4 months before this.
When I first go on the Internet, I can browse fine for about 5 minutes. Then it takes longer to pull a page. Eventually, most of the time I get "Page cannot be displayed" errors.
I have run all of the above anti-spyware programs, as well as the free "check but do not fix" runs offered by Webroot, noadware.net and Trojan Hunter. I also ran the free anti-virus scans offered by Panda, Symantec, and TrendMicro ("House Call"). Nothing comes up.
One interesting side note is that if I try to run the Symantec online scan now, after literally scanning the first file or two it says I can't because I don't have Active X and scripting turned on even though I do.
I had shut off Windows Firewall and all my virus/spyware softwares and I still have the problem (they are all back on now of course). I upgraded my network card's drivers. I did a repair install of Windows, I ran "netsh winsock reset catalog", I also ran "ipconfig /dnsflush", and finally I changed the CAT5 cable between my DSL modem and the network card (it is connected directly, not through a router). Finally, I tried uninstalling the Juno software, didn't fix it.
Sometimes there are periods where it will work totally fine for 1/2 hour, and it always works fine for at least 5 minutes if I've had everything off for an hour or more. For that reason, I am thinking it is not the DSL modem or the network card (or the wire between the DSL modem and the phone jack).
Any thoughts on this would be much appreciated. Could overclocking suddenly do this, even if it's been fine for months? If I can't get a solution, I have two other ideas that I'd like advice on:
1) Uninstalling SP2. When you've had SP2 going for a couple of months, will my system be damaged when I do this to the point that I have to do a "scratch" install?
2) Trying Mozilla/Firefox. But while there are other reasons to try this, I want to try more things first before I get this as an answer, mainly because I have seen this problem (unanswered) on a couple of other forums where they said doing this didn't work.

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