Ok I have tried many suggestions in this topic, but none of them have worked. Here's what I'm getting:

*Connecting to irc.rizon.net (7000)
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Please wait while we process your connection.
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-irc.pantsuland.net- *** Looking up your hostname...
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-irc.pantsuland.net- *** Checking Ident
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-irc.pantsuland.net- *** Found your hostname
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* [10053] Software caused connection abort
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* Disconnected

I really don't know what it could be. This problem happened so suddenly, and now I can't get on at all. I have no firewall, only AVG antivirus, no MSN, not behind a router, not running any other programs, I fixed Winsock keys, I replaced TCPIP.sys with the modified one.....what more can I do???