I would like some feedback on upgrading IE Explorer 5.1 SP 2 to IE Explorer 5.5 SP2. Can I download 5.5 SP2 or do I have to download 5.5 first? Is it worth the hassel? My cable provider ATT has recomended the upgrade. My 5.1 seems to be working fine and I do not want to mess anything up. Thank you John H.