Hi,
I bought Cakewalk Guitar Tracks Pro 4 but i met some problems.
I use a Behringer 1024 usb like mixer with this software but i can't record. However, the two green bars light up next to the guitar picture when i play guitar but no sound is record.
I record succesfully with the same mixer and the software Audacity.
 
Thanks for your answers.

Do you have your mixer selected as your recording device? Look under "Options > Audio.Make sure to check your track inputs and outputs too.

Yes is done
My guitar is recognized by the software. When i activate the entry echo
on the right of the recording button, i can heard my guitar but is just some sizzle at each chord.