Ok, whats the secret to growing Coriander ?

I am at a loss as to how to simply grow corriander from seed in a pot. I have sown them indoors in warmth, in the greenhouse, some with plastic bottles cut in half over them and they start promising and the base of the plant goes very thin and then just seems to fall out the soil and die.

Surely it's possible to grow these things ?

Thinking the same as Argyllie!

If it's the seedlings you are losing it sounds like damping off to me (too wet, too close together, too much humidity - take the covers off as soon as they germinate.)

(There's some rubbish compost about as well these days so they may also appreciate some liquid feeding but it doesn't sound like yours got that far!)