W-e-e-ll, forgive me but I think we have a different solution - husband says he'll buy me a new drive for my birthday, which is coming up soon. Now, obviously I don't know if this will work as expected.
Doing an Uninstall and a Reinstall on the existing drive - Does that delete the existing Registry keys and rewrite them as new? If so, then it's possible that any physically new drive will be treated the same, and, basically, writing a brand new and different Registry entry won't make any difference. Be interesting (though possibly frustrating) to find out!
Can we leave this for 1 week now? So, I'll set a reminder to tell you whther installing a new drive with its new drivers has worked.