I had the occasion to test it under several Linux distributions. - my scanner works perfectly under Redhat 5.2 and 6.0 and SuSE 6.1. - it doesn't work under Mandrake 6.0, or under Redhat 6.0 when I upgrade to kernel 2.2.11. My scanner is a SCSI Agfa Snapscan 600, on an Adaptec 2940 Ultra. I think that a bug was introduced in the kernel after version 2.2.5 (it stops working as soon as I use a kernel version above 2.2.5, even without changing anything else).