Debian hangs while booting

[Stefan Burkard <burki@burknet.ch>]

hi all

I installed debian etch beta 3 on a dell poweredge 1950 server and it 
worked just fine (except that I wasn't able to install GRUB, therefore I 
installed LILO).

but after the installation, debian hangs while booting. the last line of 
the output is something like:

low speed USB device using uhci_hcd and address 4
config #1 chosen from 1 choice

similar lines were processed before this one (one with low speed and one 
with full speed), but perhaps the next line that I don't see would 
contain the real problem?

can anybody help me out? any suggestions?

thanks and greetings
stefan