Loose rivets . . . . .
Ah, ..............................still no luck(!).
No, you can forget clearing everything out at the end, cookies etc.; should not be relevant, do it all the time at this end.
Are you by any chance using IE 5 or 5.5 (?), if so take a look at
THIS. ...Even if you are not, there are references that still seem to apply to the later versions, i.e., 'Protected Storage' in 'Services'. ...There is some more specific info on 'Protected Storage'
HERE
For additional suggestions for IE 5.5 & 6, take a look at
THIS.
Finally, there is a guy on a forum
HERE with a similar problem. ...The links in the answer are similar to above, but there is mention at the end to a downloadable scripting repair file from Microsoft which you may want to go looking for if all else fails (?).
Good luck!