EFS, password change denies access to encrypted data

Hi,
Has anyone had the issue with admin changing users password in Console One
resulting in users not being able to access their encrypted data.

Laptop users are using EFS to encrypt their data.

These users have WinXPPro SP2 and we are running ZfD 6.5SP2.

I have found IR 1 for ZfD 6.5 SP2 which includes TID3003874 "Personal IE
certificates and EFS stop working after password change" however this does
not fix the issue.

Could someone explain in more detail what this fix does as I may have
misunderstood what this fix is.
Regards,
Eric.