I use the number pad a lot when typing numbers, so when I am in SciTE and I do a little math like ($num1 - $num2), instead of showing the minus sign, I get a comment mark: ;~ 
 
Apparently, it is just a "comment" button in SciTE since the ;~ become a REM when I am writing a batch file.  
 How do I stop this from happening automatically? 
 
Thanks in advance.