Sorry, the one crucial piece of information I missed is that I'm running Cacko 1.23 but I had assumed it would be similar enough to Sharp that it was worth a go.
Install stdout and stderr capture (had to learn how to do this!!!):-
Configuring hbzcard...Display size = 480x640
ipkg_remove: Removing hbzcard...
Display size = 480x640
So the screen full of repeated output must be to do with reboot. Just looked again and it's a screen full of modprobes then a line or 2 or 3 of something different at the bottom. Interestingly, ipkg remove *doesn't* force a reboot (although the centre of screen cursor briefly appears) whereas "Remove Software" program still does (similar screenful of modprobes, etc.)
Yes, my memory card gives D, not M - poor short-term memory - also can't remember if Cacko gave a taskbar icon for inserted cards. They seem to mount automatically.
I'm happy to try a debug version and send you the output. Please don't feel obliged if you don't want to open a new can of Cacko-flavoured worms!!!! But if you do, put a "secret" file on your web site and PM the location to me.