I have been using the NSLU2 with no trouble with one EXT3 drive under 2.3R29 for over a year. After upgrading to 2.3R63 and connecting one NTFS drive to USB1 and my old EXT3 to USB2 the network connection to the NSLU2 drops for some reason within 72 hours and the drives inaccessible. After rebooting the NSLU2, everything works again for another 72 hours, but this is very unreliable for unattended backups. Any thoughts or suggestions? Thank you.