I'm having the same issue with a portable edition of Zim 0.62 on Windows 7 (32 bits).
It is indeed quite random. I usually don't run into the error when editing files in quick succession, but when typing in the same file for more than ten minutes, I usually keep on running in that error untill I leave the note and come back to it again.
I'm having the same issue with a portable edition of Zim 0.62 on Windows 7 (32 bits).
It is indeed quite random. I usually don't run into the error when editing files in quick succession, but when typing in the same file for more than ten minutes, I usually keep on running in that error untill I leave the note and come back to it again.