Is it specific to 20041230, or is it any version?
And is the client a Mac or PC?
If Mac, what version 10.3.7? And when did you update to 10.3.7?
It looks like I’m seeing problems with 10.3.7, when it doesn’t show up in iTunes, but then you close iTunes and re-open it and it shows up.
I’m not sure what that’s about.