Logic Problem With Macbook Options

[Theorie]

Hi everybody, i'm french so excuse me, my english is not so good.
I came because after i bought my new Macbook, i put Logic Express 7 on my computer but the first time i used the software, i got a message which tell me that Computer's were gonna choose inpout and output.
Then now i can't record My instrument because i can't see the record button on each parts (pistes).
I tried to change view option or Audio option but it sounds like my computer isn't ready for recording.
If i put on the recording button, it tells me "There is no Audio parts that can be recorded" !
I hope you understood my problem even if my english is bad !
Thanks everybody. Bye

theorie

[gdoubleyou]

In the audio preferences make sure that a core audio driver is selected.

Also select the the proper input/output for the audio track you are using.