Question : Internet Explorer is broken!!!

My customer's PC got infected with a rogue AV amongst other things. I've got it all cleaned up and secure but now IE8 is broken - "cannot display the web page".
I've uninstalled and reinstalled IE8. Tried IE7 when IE8 was uninstalled - no go.
I can ping the google website from a command prompt. Installed google chrome and had the same problem - but didn't give me the option to NOT import settings from IE.
I just installed FireFox 3.5 and did NOT import settings from IE and it works!!!
Any idea how I can fix IE?
O/S is Win XP Pro with SP3. AV is Sophos SBE AV plus Sonic Wall hardware firewall.
PC is attached to a Windows Server 2003 SBS domain (no exchange server).

Regards,
Greg

Answer : Internet Explorer is broken!!!

What scanners did you use to remove the infection? some scanners Sometimes the damage of these nasties takes time to fix even if a scanner managed to neutralized the infection.

If you haven't yet try ComboFix and show us the log.
http://www.bleepingcomputer.com/combofix/how-to-use-combofix