thanks, so it is losing the 2nd desktop only and also only the 2nd computer.
Sounds like it is breaking the connection and windows has verify this user before it can load the default desktop,
that's normal..
but as it is not the default desktop but rather the 2ndary display it does make sence that the user cannot open this desktop when booting.
Windows loads first and would have to use the default desktop until windows is finished loading.
Cant hurt to try.. but change the default desktop as I mention earlier.
On the Dimension 8200) that outputs via the Radeon 9250 graphics card r/click the desktop properties
In the display settings where you have "Extend my Windows desktop onto this monitor"
As its back to front.
In the display settings you see monitor1 and monitor 2, under monitor 1 Use this device as the primary monitor,
under monitor 2 none.
on the problem laptop dis-able this feature as it is not the primary display but rather 2ndary display and therefor cannot in my opinion be logged onto this desktop display.
If you were using a remote desktop then this client can log onto the desktop by deafult.