IBM ThinkPad                                             June 18, 2003
PC-Doctor DOS #91

Version 2.0.1250
======================================================================

Notice:
-------
This program is language independent and can be used with any language
system.


What This Package Does
----------------------
This package provides 'PC-Doctor DOS' ThinkPad diagnostics.

The following models are supported:
  - ThinkPad X20
  - ThinkPad X21
  - ThinkPad X22
  - ThinkPad X23
  - ThinkPad X24


Released Versions
-----------------
Version 2.0.866   Initial Release for ThinkPad X20.
Version 2.0.918   Support for ThinkPad X21.
Version 2.0.1035  Support for ThinkPad X22.
Version 2.0.1092  Support for ThinkPad X23.
Version 2.0.1129  Support for ThinkPad X24.
Version 2.0.1184  Change diskette configuration.
                  Support a new device and problem fix.
Version 2.0.1250  Problem fix.

Summary of Changes
------------------
Where:  <n.n.nnn>    Version n.n.nnn
        (New)        New function or enhancement
        (Fix)        Correction to existing function

<2.0.866>
 - (New) Support for ThinkPad X20.

<2.0.918>
 - (New) Support for ThinkPad X21.

<2.0.1035>
 - (New) Support for ThinkPad X22. (PC-Doctor DOS #129)

<2.0.1092>
 - (New) Support for ThinkPad X23. (PC-Doctor DOS #129)

<2.0.1129>
 - (New) Support for ThinkPad X24. (PC-Doctor DOS #129)

<2.0.1184>
 - (New) Change to three diskette configuration.
 - (New) Support ATI video adapter test.
         (ThinkPad X22/X23/X24 only)
 - (Fix) PCMCIA External Loop test returns 'FAILED'.
         (ThinkPad X22/X23/X24 only)
 - (Fix) System freezes during USB Port External Loop test.
         (ThinkPad X22/X23/X24 only)
 - (Fix) Fn key is not recognized in Interactive Keyboard test.
         (ThinkPad X22/X23/X24 only)
 - (Fix) Erase Hard Drive utility displays inaccurate remaining time.

<2.0.1250>
 - (Fix) System freezes during memory test.
 - (Fix) Volume and Mute buttons do not work.


Diagnostics Procedure
---------------------
 1. Power off the system.
 2. Insert the 'PC-Doctor DOS #91-1' diskette into the diskette drive
    and power on the system.
 3. Follow the instructions on the screen.

  Note:
    PC-Doctor DOS provides some benchmark tests, for example, a test
    to indicate how much battery power remains. Results of such tests
    might differ from the specifications provided in the user's guide
    and catalog.
    The results vary depending on the testing method and the testing
    environment, and IBM does not guarantee these results.

How to determine what version is installed
------------------------------------------
 1. Run PC-Doctor DOS.
 2. Select Quit menu by keyboard or mouse.
 3. Select About.
 4. Version Number is shown.

  Note:
    This version information does not show minor version.
    For example, the version 2.0.651a shows version 2.0.651.

Known Limitations
-----------------
     1. (For ThinkPad X20/X21 users only)
        Before starting PC-Doctor DOS, Power Management settings
        must be changed by the BIOS Setup Utility as follows:

          Power Mode for AC         [Customized]
          Power Mode for Battery    [Customized]
          Customize
            Processor Speed         [Fixed Max]
            Suspend timer           [Disabled]
            LCD off timer           [Disabled]
            HDD off timer           [Disabled]

Trademarks
----------
  * IBM and ThinkPad are registered trademarks of IBM Corporation.

  Other company, product, and service names may be registered
  trademarks, trademarks or service marks of others.