This may be an issue with my browser and operating system rather than an issue with Stack Overflow, but for some reason I can't use Command-C or Command-V for copy-and-paste operations when I compose questions and answers in Firefox 5.0 on Mac OS X (copy-and-paste operations work fine in comments, though). Interestingly enough, when I press Command-V I get the text `enter code here` instead of the content of my clipboard. (Note that CTRL-C and CTRL-V work properly in Firefox 5.0 on Windows XP.)
Has anyone else run into this? Is there an easy way to fix it?