Thanks for your reply Dennis.
I uninstalled the latest version of Speccy, using Revo Uninstaller, then installed V-1.20.446. That was the latest previous version I had on my hard drive.
Here's a shot of it.
As you can see, it only shows the 3 momitors.
I don't know if it's relevant or not, but all 3 monitors are CRT's.
Also, I am still running XP.