Izno - under preferences > editing I have the following ticked:-

Izno, there are no issues with my internet service, the rest of the net is working fine without any issues accessing websites and web pages. I don't understand much of the technical stuff behind the editing software, so am unsure about the not having the show a preview and no-javascripte wikitext editor stuff. I don't like to interfere with my settings where this sort of stuff stuff is concerned. Can we rule out a web browser issue as it doesn't seem to be a PEIS issue from what has been said at VPT. I use Firefox.