Bug introduced in 10.0 and fixed in 10.0.2

As some of you might know, if you press Control+Shift on windows, you change your keyboard layout. For example, : becomes ±. This happens sometimes in Mathematica, and it results in a weird bug: control z no longer works, even after you change back. Sometimes I'll be writing and suddenly I see ±, so I know I have to press control shift, and I can type : again. However, if I use control z, it opens the wolfram demonstrations page http://demonstrations.wolfram.com/, and so does undo under edit. The only way of getting rid of this is completely quitting Mathematica, which is quite a hassle, especially as I usually find out when I want to actually undo something. This means that I actually cannot undo this, which is very problematic in some cases.

Does anyone have experience with this bug?

  • $\begingroup$ In (my) Windows 7 Control-Shift-: does not work the way you describe. Does this feature need to be turned on somewhere? $\endgroup$
    – Mr.Wizard
    Jun 26, 2015 at 0:28
  • $\begingroup$ Hm, from what I know is that it changes the keyboard layout. It appears to be under Control Panel -> Regional and Language Options -> Languages tab -> Details. I suppose I could turn off the shortcut, but that still doesn't explain why mathematica changes its undo into opening the demonstrations page, even after switching back layouts. $\endgroup$
    – user129412
    Jun 26, 2015 at 0:46

1 Answer 1


This bug has been fixed as of version 10.0.2.

See also these other questions: (58799), (60408), (72750) and (90054).


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