Load issues with backend editing

hi there,
I have huge problems with load issues in the backend... resulting in the page not loading completely
When editing items, selecting, displaying lists and so on 2 out of 5 times the page stops loading, resulting in a partly loaded page



The only way to continue then is to refresh... to re-post the page
This does not produce any errors and is very annoying
Any ideas what this is and how to prevent it?

cheers,

Wiebe

Joomla 3.4.8 Flexicontent 3.0.13 ... but this happens also with other versions

Hello

this is usually caused by installed plugins
- extensions installed in your website (PHP error that does not show if PHP error reporting is OFF)
- plugins in your browser that parse HTML and find something specific in FLEXIcontent pages that triggers them
e.g. skype click-to-call (i had to uninstall it in the past because TAB swithing in gmail in older computers to need 3 seconds)

also
- you should use v3.0.14-rc2a without any hacks
- go in Joomla Global configuration and set error reporting to maximum, to see if any PHP notices/warnings/errors appear
- trying using a different browser or running browser in safe mode