error on start-up checking modules dependencies
 

Hi, I need, please, somebody help me, due nthe next facts:
well, I was trying to set-up a adsl connection trough a D-LINK DFE-530TX
Lan card this go to a SpeedStream 5200 external modem;
well, before this I was using the connection on windows in the usb mode with the same hardware; but in this mode I was unable to handle internet from Linux, then I put the lan card and after this when loading Mandrake 9.0 I get mi system frezzes when loading an doing the "checking module dependencies" script.
I become worry because it make my linux box unable to do anything, and the worst thing, I have the entire degree works on my linux system, and I dont want to lost them!
What can I do to get back my linux system?

Thanks a lot .
Alex