Whee! Thank-you.
Removing the fuse and waiting a minute or two and replacing worked for me.
By the way, if you're unsure which fuse it is, turn the fuse cover (that you remove) upside down and what's-what is specified there. (It calls the fuse "radio 1")
I only just bought it second-hand, and they never told me about the CD not working. Now I have 6 of their CDs... Can't say I liked their taste too much though!
Cheers,
Chris.