Yes I did manage to fix the bugs. Of course, over the last week or so I've been a bit pre-occupied to remember to tweak the system so it can handle the Mods papers as well as finals - but it didn't take too long. LO says he wants to ask me some questions, but in fact it seems that those are the same as the bugs I've fixed. I have sent him the new programs which will hopefully be to his satisfaction. I'll have to go in to see him on Monday morning though, I think.