improve cog's response to missing drives

i have multiple drives that store my music. my ipod (rockbox), external drives, and my startup volume for peeping recent downloads from my desktop or torrent folder.

if i launch cog without having all previously used drives available, it crashes and i must delete the cog preferences in my library before i can launch it. it's so frequent i have the folder stashed in my dock, available for the few times a day i need it.

it would be nice to either fix this issue all together, or prompt upon launch that some volumes are missing and do i want to 1. plug the drive in and locate the music or 2. remove the missing songs from my playlist. or 3. create a new playlist for available media.