Not Responding Error Message

Good Afternoon,

I am currently editing text to match timing of auido in my Captivate 6 slides.  I am continually running into a "Not Responding" error message.  Please inquire with sugeestions on how to stop this.

Already tried:
- Rebooting Captivate
- Rebooting System
- Working just out of Captivate with no other programs running

Thank you!