The Audio tab shows C-Media Wave Device as the playback device - there are no other audio devices listed.
Yes my speakers are plugged into the mains, switched on and connected to the Line Out socket on the back of the computer. Nothing about the speakers has changed.
And yes I do remember a audio cable from the cd drive inside the computer and it was definitely still connected to the motherboard when I removed the Modem. Like I said none of the sounds on my computer are working not just music cds so I don't think the internal cable is at fault as that would only affect the cd drive.
Can't seem to fix the sound so have decided to buy some USB speakers with in-built sound. They are supposed to work even if your onboard soundcard is damaged or missing so hopefully they will give me sound. Also it will free up the plug socket that my old speakers are attached to.