First and foremost, sorry if this is already posted.

I've been reading through the manual for creating scripts for MP!L, and I can't manage to make a window as described in "Windows for your Script" (under "Working with Scripts"). I have done exactly as it says but the window doesn't show up. I have read through "Testing your Windows" and downloaded the window tester, but it can't load the XML file, although I've copied it directly from the manual.

So, any ideas what could be the problem?

You need to save the XML file as Unicode.

The file is already Unicode (UTF-8 without BOM), but it doesn't work anyway.

EDIT: Never mind. By looking at another script, I found out the actual "Unicode" charset to use (UCS-2 Little Endian). Still, it's quite weird that charset is important even if I have no special symbols; but I can probably ignore that.