No GG I have never never heard of that one
--what happenned was eventually the person remembered her admin password (spaces are a terrible thing) and it went to the welcome rotating blue circle working symbol, then about 10-15 seconds later reverted back to the wrong password/user name window thing.
Also I have isolated all startup items via msconfig, still doing it, last software addition-from HP [cd for a new printer], has been removed, can't get fully into safe mode,[ however it tries to load windows files but freezes/stops at one called #####CHDISK#### in the file listing ......
] running full malware scan at preent but obviously not in safe mode.
Thinking of booting from the supplied Dell OS disk to see if it will go into a OS repair mode........................scratching head now I'm afraid...
GR.