Hi Marcusb
I will answer your questions
"Can you trry adding the second crd and then checking the configuration.log file to see what the error is?"
I will do this tomorrow to the Air cooled computer as it is easier to get to than underneath the house this is the computer running XP Pro and I will then have a look at the configuration.log and post the results.
"One last thing, does the software for the cards detect the four tuners ok? Maybe there is a limit with resources or something?"
Yes.
"Also, you might have better luck with the TV engine v3, which doesn't need the capture card definitions file and detects the cards differently."
I have not looked at TV engine v3 - I may have a look at it tomorrow since I can back up my Media Portal just in case I screw up!!! What I find nice about Media Portal is that if you have more than media player in the house ie front room bed room and children rooms and one has identical kits then when one system is configured that Media Portal Directory can be copied to the other computers and job is done after going into the configuration making sure the TV Tuners still there and know about their channels that you want them to know. Job done

!
I will let you know the results tomorrow as it is now 1930 and its time for dinner...
regards
IceHappy