i have 3 hdd partitions as follows:
hda1 = swap
hda3 = ext3 (15 gig)
hda4 = ext3 (rest of disk +40gig)

these partitons were created to a blank hdd from fdisk ... there is no os on any of these drives ... they are blank save for being formated in ext3
in order to free my cd burner to create iso images for a new os install, i performed a "tohdd" switch at the knoppix boot.
the tohdd is mounted and appears on the hda3 partition.
the hda4 partition is free and is unmounted at boot.

i cannot mount the hda4 partition as writable. i need this space to save my iso's

i have:
right click on hda4 and select "actions > change read/write mode" so that it says it should be writeable.
right click on hda4 and select "properties > permissions" and changed everything to "can read & write"
right click on hda4 and select "properties > permissions > advanced permissions" and made sure that everything had a check for write.
right click on hda4 and select "properties > device" and unchecked "read only".

what's the deal?

also note: i've tried searching for the answer on the forum, but the forum search function seems to be quite lacking ... i searched on "mount ext3 write" and came up with nothing remotely like what would be considered related to my problem.