Hi Tredegar, thanks.
/df -h gives me:
/dev/sda1 Size 7.6G used 1.9G avail 5.3G, (27% used)
/dev/sda3 Size 29G used 33M avail 29G ( 1% used )
so it looks like I miss-read the size of the /dev/sda part.
I just used reiserfs because that's what was on before, anyway, I think I have plenty of room on both partitions. I just do light office work and have some photos on disk. I managed to copy all my files over on two x 100Mb zip disks.
Again, thanks for staying with me on this, you've been a Brick.
.. and don't forget to back up your data !