I have tried closing down, restarting, leaving overnight and trying the next day and so on. Sometimes one method works and sometimes another. As a result I blame you

I have tried everything,even switching off and trying again the next day, switching to another programme and then back, switching off, switching on again All have resulted in my password being accepted at different times ans so I believe it is your faultve

No, it's NOT my fault.

Hi Wallace J Tyrie,1. Do you get any message when the password is not accepted?2. What steps have worked for you?Step 1:Check if you are able to get to the desktop in Safe Mode.Refer the below link for more information: A description of the Safe Mode Boot options in Windows XP: http://support.microsoft.com/kb/315222Step 2:If you are not able to get to the desktop in Safe Mode, then Microsoft Support Engineers cannot help you retrieve passwords of files and features in Microsoft products that are lost or forgotten. For more information regarding this policy please refer to the sticky belowhttp://social.answers.microsoft.com/Forums/en-US/vistasecurity/thread/3eba3150-8742-4264-be9f-0daaad2282cdMicrosoft policy about lost or forgotten passwordshttp://support.microsoft.com/kb/189126Regards,Manasa P – Microsoft Support.