How to solve "Unlock Computer" problem

[Jim]

I'm running 3 Windows XP Pro computers in a home/office environment. Two of
the systems (B and C) are in another area for the office so I usually access
them via Remote Desktop.



Occasionally one of these systems (computer B) will display a dialog box
with the title Unlock Computer. Inside the box it says "This computer is in
use and has been locked" It shows the user name and a blank window for the
PW which I must enter.



This only happens on this one computer. What's the cause and how do I
correct it? Suggestions greatly appreciated.



Note - I'm the only person using all computers.


Jim

 

[Scott]

Do any of the pc's have a screensver set on them ?

 

[Jim]

Yes, computers b & c both have Windows XP as a screen saver. Just removed it
from computer b, we'll see if that has an effect..

Tks.