I just got an NSLU2 last week. I immediately hooked it up, installed the 2.3 R63 firmware, and attached my USB drive (300GB Seagate in a AMS Venus DS3 enclosure, formatted in NTFS). The setup went fine, all my PCs can see the drive. Copying single files here and there works great. My problem comes when I try to run a backup to the NSLU2. I use either Karenware Replicator or Handy Backup 4.0 to replicate critical files (My Documents, My Music, etc...) to the drive. The biggest folder I backup is approaching 25GB and a few thousand subfolders/files. This process used to work great when I would take the USB drive around to each PC individually, but movign the drive around became a pain - hence I got the NSLU2. However, since I've been using the NSLU2 the replication doesnt seem to be working. It fails after a few minutes with a Error occured while reconnecting to <device name>. Microsoft Windows Network: The local device name is already in use. This connection has not been restored. After receiving this error the NSLU2 locks-up; it isnt accesbile via my network places, a mapped drive letter, or the web GUI. The NSLU2 won't even shutdown if I hold the power button for 10 seconds. The only way to get it back is to unplug it and then reconnect it. Has anyone else had a problem like this? Am I asking too much to replicate folders using 3rd party software? Am I trying to backup too much data (up to 25GB) at once? Did I just get a bad unit? Linksys tech support suggested I return the device because it will not shutdown when the power button is held in. Does this seem like the cause of the problem?