Forum Posting Preview Function - Anyone seeing this?

- Win 7x64 Home Premium OEM

- N360 Ver 21.7.0.11

- IE11

When I'm preparing a post in any thread at the forum (any section, Tech Outpost, Norton 360/AV section, etc), I'm not seeing the normal Preview screen when I'm previewing my post.  I'm seeing a screen that looks like this.  This is a partial screencap of the screen I'm seeing when I preview a post.

I've seen this happen, rarely, in the past at this forum with my PC but usually it's one of those "glitches" where it either disappears on its own (and returns to a normal post Preview screen GUI), or closing IE and reopening it fixes this issue.

This time, I'm seeing this occur with:

- My Laptop PC as well, Win 7x64 Home Premium OEM

- N360 same version as posted earlier

- IE11 and Firefox v39.0 .

Is anyone else seeing this screen when they preview a post?

I first noticed this happening yesterday, U.S. time, Fri 08/21 in the late afternoon.

This is the strangest part for me   :  When I previewed this post, the display was normal.   When I preview any other post in any other thread, and type in a "test" line... like "This is a test" , and then click the Preview button, the screen display looks like the screencap posted in this post.

I wonder if this is an intermittent issue?

To mostly test my sanity , I tested the post Preview display at 3-4 other forums, BleepingComputer.com, etc,  to see if this is an issue unique to my Desktop PC.

All post Preview display screens display as normal at several other forums that I visit daily.