Oh yeah, I had this happen accidentally as well. Try Ctrl-. to toggle it off (period character on the keyboard)
Thank you I've been looking for that for a while
Absolute GENIUS, i had searched everywhere for this and everything pointed towards the whitespace stuff but that just duplicated my problem (literally over the top but darker - maybe a bug).
For those on Mac OSX it is "CMD" + "-" + "." (command, dash & fullstop)
Thanks for this
PS to replicate the dupliacted characters do the following - command (or ctrl on PC), dash & fullstop to turn on the light grey characters then go to Preferences > general > Editors > Text Editors > check the box - show whitespace characters > click apply and you code should now look messy.
I have reported as a bug http://cfbugs.adobe.com/bugreport/flexbugui/cfbugtracker/main.html#bugId=82485
The dash is not necessary. Just Control or Command and the period key.
I was so excited that it worked, I didn't realise :-)
Yeah, I ran into the whitespace character setting duplicating the display as well, I'm not sure I reported it as a bug, but you are right that it probably should be. Ideally that setting would toggle it on and off the same as the keystrokes do. It's definitely not easy to find the shortcut to turn this off if you accidentally hit the keys that turn it on!
Please log this bug so that we do not miss it out.
Adobe ColdFusion Team
For this just press (Ctrl + >) for windows.