Editor problem

[Zijoo]

I have a problem with a post a answer or open new theme, when i click double fast i open blank white page, how to fix this ??
Before

When i click double fast

[Kindred]

1- smf version
2- URL?
3- mods installed?
4- "when you click double fast" on what?
5- Any errors in your smf error log?

6- white screens of death are a SERVER error. You should check for a file called error.log or errorlog (or some variation)