This only appears to happen if WinSCP is set to 'Commander' interface - with the 'Explorer' interface, no error is thrown, but the remote directory listing disappears.
- Set Windows screensaver to 3d pipes and 'password protected'
- With WinSCP open and connected to a session with C: drive active in the left pane, wait for the Windows screensaver to start.
- Dismiss the screensaver, and enter password - WinSCP throws an error trying to connect to a disconnected drive: "Drive D: is not ready" in my case. The displayed local path is still C:..., but nothing is shown in either pane.
- Attempting to select drives (connected or not) from the local dropdown navigates to random folders on the C: drive, and occasionally throws an 'invalid access to memory' error. WinSCP fails to function correctly until restarted.
HP Dx2400 2.8GHz Intel Core 2 Duo
Windows XP Pro SP3
WinSCP v5.0.8 (Build 2438)