I've discovered that the 'Post New' and 'Reply' features no longer work for me in any of my (Classic) forums, or in any other classic forum which I visit.  When I click on these features,  all I get is a blank Delphi page with a pop-up that asks, "Are you sure you want to leave this page?"  Please Help!

Edited to say:   I've now discovered that nothing is working in my 'Message' column.  I've also made sure that the address I'm using is an https address.
What am I doing wrong? 
I thought I had mastered this (forum creation and reconstruction) years ago.  
Everything was so easy... even the CSS with the help of the CSS forum.

I've searched the Control room looking for the dumb mistake I've obviously made somewhere (Folder Access, etc.) but cannot find anything.  I cannot get into any of my folders.  YIKES!  Please advise!

Oh...  My browser is IE (I think) and I use windows 10.  My computer is about a year old.

Since it's happening to you in all Classic forums it wouldn't have anything to do with your forum settings. I looked in this forum of yours and it's working as it should.

http://forums.delphiforums.com/breathless2/

First, have you rebooted since this started? If not, log out, close browser, and turn everything off before coming back to take another look.

Try a different browser as well, chrome and edge, not safari.

let us know if that makes any difference ...

Thanks, Gunter...  I did some updating, and I think that did the trick.  Of course, my right hand/forearm is bandaged and splinted due to carpel tunnel surgery on Friday.  That prolly doesn't help.  But I think it's all good now.
Thanks again!

Sorry to hear you're having a difficult time.

But good to hear the forums are working for you now.

Hope all is well now but wanted to add that a lot of people using old bookmarks report oddness, so maybe replace yours with Delphi’s home page and log in there 

https://www.delphiforums.com/

or your My Forums page which will also have you logging in.

https://www.delphiforums.com/myforums

Gunter, this is the first time I've visited Delphi in quite a while....  Lots of new stuff to get used to!  But good exercise for my brain, haha!

Kid,  Yup... I think that was a part of my problem!  Thanks!

Gunter, I spoke too soon.  I'm back to square one with the blank pages when I click on 

'Post New' and 'Messages'.  

Try this: Log out, close browser, then go to log in on this page

https://forums.delphiforums.com/myforums

and use the links on that page to go to your forums.

let us know how it goes ....

That's exactly what I've been doing, however, I did copy your link and saved it in faves under a new name.  

Didn't work.  Very odd.  :(