[G4] Weird restart hassle

[Ron]

If you have a usb hub plugged in, the first thing I would do is unplug it
and try. 
> 
> I'm new to the list, so sorry if this has been asked before.  I have a G4 400,
> and when I restart, the CD & Zip drives won't recognize discs.  Even if there
> are discs in the drives, they won't be there on restart.  I have to shut down,
> wait a minute, then startup, and they work again.  What's up with that?