I'm going nuts here and hopefully someone who's been cadding since the old days can help me out.
Remember how you cancled a command in AutoCAD for DOS? The cancel command was CTRL+C, but since Windows took over, it has been ESC.
I'm running AutoCAD ver. 2010 and I've lost the ability to copy clip from the drawing area using CTRL+C. Instead I get "cancel" just like DOS AutoCAD.
ESC will also cancel, CopyClip still works from the EDIT menu, and CTRL+C still works as CopyClip from within the Mtext or Text editors as well.
Other Windows programs seem unaffected.
It seems that about 15 years back, when AutoCAD for Windows first came out, you could set it to use CTRL+C or ESC, but for the life of me I can't recall how, and nothing in the 2010 HELP files give me a clue either.