What does your audio setup say? Assuming you've installed the driver that came with the Solo, you should be able to see the Solo as a choice of audio interface.

Can you be more specific as to how the problem presents itself.

can u tel me more bout u hardware n software , den if i noe i mus help u .

thanks for your interst. basically i insalled the driver then in mysystem prefernces i see an m-audio option box. i press that and it comes up with a few channels which when i plug a guitar into my box i can see a signal. basicallty i just dont know how to record in logic express . for the sounds preference i have slected firewire solo as an input.