Hi MetteM, did this issue happen all of a sudden, or did you recently do something (like install a plugin / theme) that would coincide with this issue going on?
I'm not too sure what would be happening at this point, but you might want to try some testing to rule out of a plugin / theme is having a conflict and causing this issue:
- switching to the Twenty Eleven theme to rule out any theme-specific problems.
- deactivating all plugins to see if this resolves the problem. If this works, re-activate the plugins one by one until you find the problematic plugin(s).
- resetting the plugins folder by FTP or PhpMyAdmin. Sometimes, an apparently inactive plugin can still cause problems.