To help us troubleshoot, which version of Flash Pro are you on? Also, if you could share any error messages, that would be very useful.
Hi I am having the same problem as vvdfddf. I am running windows 8.1 on my computer and literally every single time I touch the brush (and many other tools) the program just simply crashes.
Can you please share the machine hardware details on which you are running Flash CC 2014?
Are you running your system in HD mode... please let us know the display resolution you have set on your system.