I deleted and rebuilt the com ports and it's OK now. Thanks.

I tried my new bay-mounted lk202-25 using MOGD, Alpha Demo and LCDC.
I can connect to com2, but I cannot display any text. I've reset using pin5/6, rebooted, powered down and checked both the db9 ribbon cable and the 4br cable for continuity. None of these actions have caused the lk202-25 to work. I ...

I am managing to overwrite my fonts when writing to the screen of a glk12232. I assume it happens because I am writing in a part of memory that is beyond screen memory and therefore overwriting the fonts. Could this be true?