_TITLE and extended ASCII characters.

[SpriggsySpriggs]

Okay then, Houston we have another anomaly.




So my 64-bit Win 10 shows the box symbol. It was added to the title bar by using CHR$(4), the diamond symbol in QB64. Conclusion, _TITLE doesn't like a lot of non-alphabetical / noon-numeric characters. Booooooo!

Pete

Very, very odd. All I did was copy your code and paste it into my IDE. Never saw any little box. I wonder what happened.