Problem connecting Sansa e250 with Arch

[Mordechai Peller <mep@xxxxxxxxxxxxx>]

The Sansa e200 series can connect either via MTP or MSC. With the help
of libmtp I can connect via MTP, but I need to be able to connect via
MSC.When I booted an Ubuntu 7.10 LiveCD it worked fine, so the problem
is with Arch, or at least my install of it. I suspect it's a udev or
driver issue, but I'm not sure.

Thanks