1. Does this behavior persist if you start IE7 in No Add-ons mode?
To start IE7 in No Add-ons mode:
Right-click on the blue IE desktop icon and select Start without Add-ons; or
Start > (All) Programs > Accessories > System Tools > Internet Explorer (No
add-ons).
More:
Troubleshooting and Internet Explorer’s (No Add-ons) Mode:
http://blogs.msdn.com/ie/archive/2006/07/25/678113.aspx
2. Does the problem persist if you Reset IE7 Settings (RIES)?
http://support.microsoft.com/kb/923737 <= Read before using!
3. WinXP machine only: If you uninstall (a) IE7 (which automatically returns
you to IE6), (b) all toolbars and (c) all third-party Windows Themes
(including Window Blinds) and don't reinstall IE7, does this behavior
persist?
Uninstalling IE7
http://www.ie-vista.com/kbase2.html
How to uninstall Internet Explorer 7:
http://support.microsoft.com/kb/927177
IE7 (Un)Installation and Anti-Malware Applications:
http://blogs.msdn.com/ie/archive/2006/10/11/IE7-Installation-and-Anti_2D00_Malwa
re-Applications.aspx

Signature
~Robear Dyer (PA Bear)
MS MVP-Windows (IE, OE, Security, Shell/User)
AumHa VSOP & Admin; DTS-L.org
> Using AOL webmail and attempting to send a Reply to a message, my PC hangs
> and the menu is marked as "Not Responding"
[quoted text clipped - 10 lines]
> gets
> installed with IE.