XP not recognising my 2nd HD

Incidentally, to add a bit of further information - the
second HD was the primary HD on my old PC and has an
installation of windows me on, but this was not stopping
XP from recognising it before I had to do the reinstall...
and I've tested the drive, its not corrupted and still
holds the data that I need to access on it...


-----Original Message-----
I have windows XP installed on my pc - with 2 hard drives
working. I have some windows errors occurring etc, tho,
so
decide to reinstall windows as an easy solution (sorry,
I'm a bit new to this).

I reinstall windows, and although the bios shows my 2nd
hard drive is there, and if i go into administrative
tools / computer management / disk management, it shows
that i have a second disk but it is not assigned a drive
letter. In My Computer, I only show one hard disk. I
can't access the second disk, can't do anything with it
at
all....

Firstly I thought it was because the second disk was too
full, (disk management was showing only 1GB of free
space)
so I put it back in my old pc and deleted a load of
stuff -
its a 20gb HD and now has over 5gb free - but again,
according to administrative tools / computer management,
its showing what it first showed us - that there's only
just over 1GB spare... and rescanning won't update etc...

Anyone seen this before, or have a clue why its happened?
Possible solutions, other than re-installing windows yet
again?

All I can think of is that when I first installed XP, I
did it with only one HD installed and put the HD in
afterwards. Should I do the same again?

Thanks for any help that could be offered...

.