[Wine] Can't figure out how to put wineprefixes on an NTFS drive

[Kaisa]

Hi,

I'm still a bit new to Linux and Wine, so please bear with me if this is a stupid question. 

I've been putting all my windows applications in their own wineprefixes, and now I thought I'd put some of them in my data partition, because there's always lots of free space there and many of my games take a lot of space.

But when I try to create a new wineprefix on my data partition, Wine suddenly doesn't like it. It gives me the following error message, if I try to do anything after setting the $WINEPREFIX:
wine: /mnt/ntfs/.wineprefixes/foo is not owned by you

I checked, and yes, it's owned by root. Somehow it feels wrong to run Wine as root, so I haven't tried that. Is there some other way to get this to work?