Method 1:
After using SnagIt, the popup editor does not display the content just now, the solution is as follows:
Exit SnagIt and editor completely, and delete all files and folders under the following folder:
Win7 User C:\Users\Your Username\appdata\local\techsmith\snagit
XP user C:\Documents and Settings\your username\local Settings\Application Data\techsmith\snagit
(Note: Turn off the folder hiding option, or you may not find one of the directories, and replace the Your Username in the path with your username)
In addition, in the OUTPUT option, please tick the editor preview option, re-enter SnagIt, then the editor will display the
Method 2:
is Snagit cache in mischief, open the path "C:\Program files\techsmith\snagit 10\", find template, delete after restart Snagit, problem solved.
Source: http://www.cnblogs.com/bluestorm/p/3204108.html
SnagIt cannot be opened in the editor after the content is not displayed