Probems configuring balsa

[<envirotech o2 co uk>]

Hi

I'm trying to install Balsa on a netbook running linux4one. It's 
basically a cut down version of ubuntu.

Balsa enters the set up page, I type in all the details and I get a 
"Local Mail Problem
Couldn't create a directory: mkdir() failed on pathname 
"/home/dave/mail""  error message.

As i'm new to linux it's quite possible I'm missing something really 
obvious...

Can anyone tell me what I'm doing wrong?

Dave