Cross 1.5.5 on iMac

Hi I have just upgraded Cross from 1.3 to 1.5.5
since upgrading i have lost sound coming through my right deck.
has anyone else experienced this problem?
it worked OK before upgrading
Thank in advance
Rashpal
setup
2 x cdj1000 mk1
1 x allen & heath mixer
1 x iMac 3.2GHz Intel Core i3 4GB ram
1 x edirol fa101 sound card
since upgrading i have lost sound coming through my right deck.
has anyone else experienced this problem?
it worked OK before upgrading
Thank in advance
Rashpal
setup
2 x cdj1000 mk1
1 x allen & heath mixer
1 x iMac 3.2GHz Intel Core i3 4GB ram
1 x edirol fa101 sound card