July 25, 2008 5:15 PM BST
sounds like a config problem, I think MSIE 7 updates more than just the browser it could be related.
one thing that may be worth trying is to unplug the internet connection and try that, also with it still unplugged try to switch all the anti virus stuff off, and see if FF starts then.
its not that uncommon to find a programme needs to update various settings, which it will do when it starts.
failing to reinstall is probably the programme trying to 'phone home' and failing, didn't think FF did that though.
can't try it here, not running windows any more, and my virtual machine won't upgrade to MSIE 7, even if I let it try.
but this sounds like either a firewall problem or some other conflict, probably caused by MSIE 7 updating some settings somewhere
July 25, 2008 11:20 PM BST
Windows KB951748 'fix' did just that! It totally screwed a number of Firewalls. Zone Alarm even provided a patch, (within 48hrs, Windows didn't even acknowledge there was a problem) and Windows have subsequently repaired their own c*ck-up. A lot of people had internet access and other problems after installing the 'security fix' See if you have it, general advice seems to be remove it, and re-install your Firewall etc. Then you can update your Windows again. Might be just co-incidental it happened at the same time you were trying FF3.
September 14, 2008 5:00 PM BST
ie7 conflicts with fire fox remove ie7 or downgrade to 6