Hi ...

1. Start -> Run -> diskmgmt.msc
From here, by right clicking you should be able to assign/change drive letters.
If this by chance doesn't work procede to step 2
Sorry. diskmgmnt see all partitions, show them as healthy and says that all of them are primary. I guess XP C drive is primary and the remaining should be logical. On this way the only task diskmgmt allows me is "delete" such partitions. The only one that have more options (change letters, etc) is the labeled as C drive. Take a look at http://py.qsl.br/partinfo.gif .

2. Start -> Run -> regedit32
Make a backup of your registry. (This is just a precaution, you don't do anything in XP w/o making a backup)
Browse to HKEY_LOCAL_MACHINE/SYSTEM/MountedDevices
Delete the \DosDevices\D: through however many you have.
Close regedit32
Reboot the machine.
Nop. Deleted all letter assignemnts but A, C and E (E=CD ROM), rebooted but still the same.

You can edit lilo.conf manually by booting from your knoppix cd, just remember to run lilo afterwards.
Fixmbr will just restore your mbr to ntloader to get windows booting properly again.
Yes, I can do it from CD or from HD where Knoppix is. The instalation run perfect. May be - if I had installed without the XP drive connected - and later edited lilo.conf manually or simply choose at the bios from which device I want to boot this things will not hapenned.

I did a intalation of a Knoppix like distribuition (Kalango, I guess a customized Knoppix CD) some time ago but at this time I set XP drive as the slave HD and then proceed to Knoopix/Kalango install at the Master HD. Doing this I guess lilo makes all changes to MBR only at Master and left slave as is, "thinking" it was master due to some instruction at lilo.conf.

Seems that fixmbr is the way to go. IŽll then restore MBR (lilo will be killed at master). Will then disconect Master and re-install from CD on slave. But before IŽll try to write lilo on slave (where Knoppix is) to see if I can keep actual Knppix instalation as is.

Thanks for the sugestions :o)

Regards
Marcus Ramos
PY3CRX/PY2PLL
http://py.qsl.br