Problems with Desktop Site

[WWYD2016]

When I create a new thread rather than posting to Mumsnet it attempts to save as a file on my PC. I revisit Mumsnet and duplicate threads have been created. Similarly when I attempt to open threads I have created, once again Mumsnet attempts to save as a file to my PC.
Help!!!!

Hi WWYD - how odd! Sounds like you're using the desktop site? Which browser are you using?

Yes I'm using the desktop site, Internet Explorer 11 and Google Chrome. I am having problems with the app too, when I try to open my thread, a download is attempted.

Do you have a screenshot please WWYD ?