Silly Question About Appendix A

As I've said, I'm going to use DMG's Appendix A to build the one page dungeons. Still, I can't understand the bit about secret doors. In Table V. C it says:

*Check once per 10' for secret doors (see Table V. D, footnote).

And in Table V. D it says:

*If a passage or door is indicated in a wall, where the space immediately beyond the wall has already been mapped, then the exit is either a secret door (1-5), or a one-way door (6-10) or it is in the opposite direction (11-20).

So, question: what is the probability of having a secret door within those 10'? It says anywhere as far as I know. Come on old grognards, that's your chance to impress my young mind with your superior knowing of the old stuff!

Help Me Find That Font!

I'm going crazy in trying to find this Leonardo Hand font designed by Judith Sutcliffe. It's available at a cost, of course, but since I'm not making money out of its use I'd prefer not to spend 45 bucks.

For those who are wondering, it's the same font used for Chaosium's Call of Cthulhu Sixth Edition. If you have it somewhere on your hard drive, and you're willing to share it with me, please send me a mail at malsetto [at] gmail [dot] com – you'll be loved!

I Need Your Help, Again - Geomorphs Anyone?

Yo guyz! The Birthday Party is approaching and I still have tons of dungeons/levels to map. Therefore, I need to be pointed to some on-line tools that uses geomorphs; I remember one that allowed you to choose the sets (Dyson's and others) and eventually save the map? I don't need anything random, I need something that actually lets me choose each geomorph – or at least allows enough customization on randomness. I don't actually need anything that "fills" the dungeon for you, just the maps. If you have suggestions, it would be much appreciated! Rock on!