1. What is the message mean when I press [Check Title] on submit a new topic with this title :
> Similar topics already posted
> No matching topics found
"No matching topics found" , isn't it ?
If there exist "Similar topics", please point it out.

2. When I preview this post, reply :
> Correct the highlighted errors and try again.
But There is no place HIGHLIGHTED !?
Am I blind !?
I'd copy all message and paste it into notepad, and copy all from notepad to paste it back here.
It should be all pure text message, not exist any style code that I copy from other web page.
I don't think there exist any style error here.
Is your check code incorrect ?

3. When I run FreeMaster on my high resolution PC, I can see NOTHING :

For solve this issue, I adjust the DPI setting of thie program :

This DPI setting make all graphics/text message available to see.
BUT!
This cause another issue:
When I try to Export a graphics image into clipboard :
Screenshot:

Actually, ONLY export this into clipboard :

So, the rootcause , please try to fix resolution problem on FreeMaster app.
Thanks.