Ok, those numbers should be rounded, maybe that's what causes the problem. Let's see if this version fixes it

Apparently, Autohotkey is unable to resize the grid picture to make a line. But this makes no sense, as it has worked befora!
I have sort of ran out of options, but let's see if this desperate move makes any difference.

I've attached a new debug version to this post. Unfortunately, if this does not work, I honestly have no idea what may be causing this problem

[edit] maybe it'd be faster if we moved this discussion to the forum personal messaging system or to email. you can contact me on any of those by using the buttons bellow my avatar [/edit]