[Wine] Drive Mapping not sticking...

[theonewho]

When I run winecfg and tell it to Autodetect is finds my 500 gb hard drive and assigns it as drive k: which is great.  But the mapping doesn't seem to stick.  Sometimes in the middle of a task (usually in DVD Rebuilder) the drive will disappear but even if it doesn't then it's gone after a reboot.

I'm not seeing an option in winecfg to save the settings so is there something I'm missing?  I'm using Ubuntu Gutsy with wine version 0.9.58.