[expert] Serial ports don't work

[Jan Rocho]

I've been using Linux for about 2 1/2 years on one computer and after
moving everything
into a new case my serial ports arent't working anymore. I already
checked my cables and also replaced the
serial ports but that didn't help. I can't use my mouse and my modem.
However, I can initialize my modem and the led's light up on the modem
but I can't dial out.

Anyone got an idea about what might be wrong?

 Jan