AutoCAD Command Line Issues

Using AutoCAD LT 2014, it repeatedly only accepts the first letter of a command typed in.

Want to copy, so I type CO and I get Circle, command C
I want to break, type BR and get B for block.
PLOT or PL gives only P for pan.
DI for dimension gives D for dimstyle.

Short of uninstalling and re-installing, what else can we try?

Win7 Pro 64-bit, 8 GB RAM
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Have you tried disabling dynamic input?

Also, under "Input Search Options", you can increase the delay time, which might help.

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PCLANTECHSAuthor Commented:
The user only works with dynamic input disabled.

He did change the input search to 1000 milliseconds, and will see if that makes a difference.
PCLANTECHSAuthor Commented:
Input search option changed to 1000 milliseconds fixed the issue.
PCLANTECHSAuthor Commented:
Input search option fix only worked for 2 days. No matter what he increases it to, he still has the issue.
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