Microsoft Security Bulletin Summary for August, 2005
http://www.microsoft.com/technet/security/bulletin/ms05-aug.mspx

Due to some problems with security signatures of some of the patches, some users encountered problems downloading the new August patches.
Here is an alternative link to the download path:

Cumulative Security Update for Internet Explorer for Windows Server 2003
http://download.windowsupdate.com/msdownload/update/v3-19990518/cabpool/WindowsServer2003-KB896727-x86-ENU_0dd1b66897d4218914c25cf8614b1e8.exe

Cumulative Security Update for Internet Explorer for Windows XP SP2
http://download.windowsupdate.com/msdownload/update/v3-19990518/cabpool/WindowsXP-KB896727-x86-ENU_42516c52001a4537fd9681f710f76dd.exe
 
Cumulative Security Update for Internet Explorer 6 Service Pack 1 (for Windows 2000 and XP SP1)
http://download.windowsupdate.com/msdownload/update/v3-19990518/cabpool/IE6.0sp1-KB896727-Windows-2000-XP-x86-ENU_03a52532a30f8ae123461eafbc70daf.exe
 
So, don't forget to patch!
Urs