I Get No Signal On The Assigned Output Busses Og The Sw Rtn., After crashing I get no signal only in the output bus of the sw rt 1/2 Options

[rodrigosigala]

Ive being using m-audio firewire 410 (driver version 1.7.2) together with a MacBook Pro (Intel Mac OSX 10.4.7) since a couple of months without having any problem. But the last week my computer had an "unexpected problem" and I had to shut it down using the power button. After I restarted it again, I realized that even if I get a signal on the sw rtn1/2 when I use itunes or Garageband, I get no signal on any of the assigned output bus (I have a m-audio 5.1 surround system). The funny thing is that when I use an analog input, I actually get signal on the assigned output bus of this input. I uninstalled and reinstalled again the drivers of the m-audio 410 firewire without any success.
I would really appreciate any comments.
Thanks in advance,
Rodrigo