X200 lockups after sitting idle

Question

I have a x200 that lockups when sitting idle for a while. I have the computer not set to go to sleep only turn the monitor off when on AC power.
It is running Windows Vista Business.
Please help.

Answer 1

Possibly I've got the same problem on my X200. Here are the descriptions:
System config:
Thinkpad X200 (with 2G original DDR3, 5100agn, bluetooth, fingerprint reader, integrated camera. WITHOUT turbo memory.)
Windows XP SP3
With all drivers and necessary softwares downloaded and installed from official source (most of them using System Update).
Hibernation is on.
Screensaver is on (e.g., 5 minutes).
Password on resume from screensaver is on.
And the problem is like this: when I leave the machine idle for 5 minutes or more, then it enters screensaver. Then I come to the machine to enter, and the problem comes:
If it's the first time that I want to return from screensaver since system startup, the screen will show nothing but the system wallpaper and a mouse pointer. Yes, only wall paper, no logon window, no taskbar, even no task manager after Ctrl-Alt-Del. BUT, after 2 minutes or so, the logon window would appear. I can return to the desktop by either password or fingerprint.
However, if it's not the first time that I return to desktop from screensaver, such problem won't occur. I wonder what the problem is, and whether it's the same one that wreed encountered. I tried to disable and enable hibernation, disable or enable the fingerprint reader, but none worked. All the drivers and software are official...
PS, the machine comes with another problem: after hours of use, when I shutdown the machine, winlogon.exe would report an error, and then bluescreen and reboot. I'll try to catch the detailed information and post another post here.