Hi, What list exactly are you referring to?
On http://www.sane-project.org you'll find it listed under Benq 640U (Acer Peripherals renamed itself to Benq several years ago, as is also mentioned in the same list). The scanner has been supported for more than seven years. So, what exactly are the problems that a you and the lot of others that you are referring to have with this scanner? Kind regards, Oliver