Hello, Were any changes made recently to the system? A driver or OS update, perhaps?
Regards, Aryeh Goretsky At 10:00 AM 3/20/2011, you wrote:
Message: 2 Date: Sun, 20 Mar 2011 18:56:55 +0700 From: "Jeffrey Race" <[email protected]> Subject: [Thinkpad] T43/WXP some disaster with ntvdm session To: "Thinkpad Users Group" <[email protected]> Message-ID: <[email protected]> Content-Type: text/plain; charset="iso-8859-1" Maybe some of you will have ideas about this mystery. My T43 is perking along and about 4 hrs daily I am using WordStar (16-bit DOS ap) which has been working fine for me since 1983 and is rocket fast as it's written in assembly language. Suddenly I can no longer use WordStar's Page Preview function, which switches the screen drive from character mode to graphics mode and gives me the WSYISYG view of the word processing file I am drafting. When I execute WordStar's keyboard command ^OP it instead causes the video drive to my IBM external monitor to disappear, resulting in a black screen ("power saving mode" comes on--you get the idea). I can recover control of the machine only by hitting Alt-Tab to move to another ap in order to get the display back. I have to kill the NTVDM process with the Task Manager and it leaves a mess of $x$ files behind. I ran SFC /scannow which found no errors, and I also replaced the ntvdm files with good versions from the i386 cache without improvement. NSW WinDoctor finds no registry errors. Any ideas what might be wrong? How to diagnose what is wrong? Clue: at one point I received a never-before-seen screen message, I think after some timeout condition: WordStar 7: The NTVDM CPU has encountered an illegal instruction. CS: 0054 OP:ff ff ff ff a9 Chose Close to terminate this application Googling this brought up the ideas of sfc and replacing the ntvdm files but as noted neither cured the malfunction. Thanks for any help Jeffrey Race
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