My Outlook Express just started giving me an error when trying to change the
Formatting of my Fonts when using the "FORMAT" tab at top.

Prior to this error message I tried downloading IE7 Beta but it wasn't
working properly so I removed the program and am back with IE6

If I change the size using the "format bar" (just above the contents of the
message) it works fine.
But if I try to use the commands in the toolbar area I get an error message
saying
an error has occurred in this dialog
error 501
permission denied.

Can anyone help me?

Thanks
Stu