Try, try, try again.
I've potted up 3 mango seeds hoping for a sprout and a gorgeous little tree, and it wasn't until the third that I finally got what I had hoped for.
3rd time must be a charm.
Im giddy with joy over my little mango sprout (and as I write this I am waiting for my ride to work, so photos will have to follow....)
Its oh-so-cute... and trust me on that one til later.