standard keyboard commands not working?

[Emanuela Pompei]

Hello,

I am using the latest Aquamacs (2.4) on a MacBook Air

running Mountain Lion, version 10.8.2

I am trying to use the kill rectangle command (^X R K), but

the command just doesn't work.

The ^ SPC to mark is.

I also tried with the M-x line command: the mark is set, but the

command kill-rectangle is not answered. Aquamacs tells me I should

use the ^X R K and nothing happens.

I have found nothing about this in the FAQs..do you have any idea

what I could do?

Thank you very much,

     Emanuela Pompei

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