windows update issues

Hi guys,

can’t tell why but I’ve recently reinstalled my OS and since then, I cannot go through Windows Update without having web shield and network shield deactivated,otherwise IE just freezes. As soon those providers are off, I can run Win Update again.The standard shield is not an issue. Is that a normal behavior of Avast AV or do I have a bug? thanks for your help.

running WinXP Sp2 + Avast home + Win Defender + Comodo CFP 3.0
(the firewall is not an issue for Windows update, already checked)

update: I just cleaned my IE7 cache from the Windows Internet options instead of CCleaner as I use to and now Win Update runs with any provider activated, strange, but nice after all.

Hmmm… the problem could be on Comodo…
See here.
I don’t have any problems in my XP system… ???

I just did my Windows updates last night with no problems. Using Comodo and Firefox with IE tab extension.