weird chanel problem with Phase X24, jack and freebob

[altern]

hi

This week i took my sound card after few months not using it and I have 
this weird issue. When i play any sound, on the left chanel i get the 
left chanel audio but on the right one i get the right audio plus the 
left chanel audio with a small delay.

The card is a firewire terratec phase x24. I am using Ubuntu studio 
hardy with kernel 2.6.24-21-generic #1 SMP
jackd version 0.109.2 tmpdir /dev/shm protocol 22
freebob 1.0.7-1

my laptop is a ibm x32 with firewire
$ lspci | grep 1394
02:00.2 FireWire (IEEE 1394): Ricoh Co Ltd R5C552 IEEE 1394 Controller 
(Rev 02)

The funny thing is that i have been using this soundcard for a year now 
and i did not get this error before. I havent used it for the last few 
months and since i have updated to Hardy so maybe something is 
misconfigured.

I have been doing all kinds of test with the jack conections in QJackCtl 
to see if something was conected to the wrong output but i cannot get 
rid of the problem, just conecting the left chanel sends audio to the 
right (with the delay). This card has 4 inputs and 4 outputs (monitor 
left, monitor right, main left and main right). And it works fine under 
Windows XP

any ideas where to start from? many thanks

enrike