[Wine] can't find DOS drive

[Gunnar G]

Hi!
I'm getting this message in my Gentoo Linux machine when I try to run .wine

$ wine
Warning: could not find DOS drive for current working directory
'/home/gunnar', starting in the Windows directory.
Wine 20050930
Usage: wine PROGRAM [ARGUMENTS...]   Run the specified program
       wine --help                   Display this help and exit
       wine --version                Output version information and exit


How can I get a DOS drive?