Why not use Vuescan it works with virtually every scanner there is and it is a superb scan app. Not only that it can make profiles for you for color management this is an overlooked and very useful aspect of the app. Give it a try it won't cost you anything for a free 30 day trial or there are copies around in the "scene".
Thank you all of you. I tried all the suggestions of this thread but nothing happened. The problem still exists.
Microtek 5800 or Epson 2450 Greetings, knowledgeable Windows Vista practitioners! I have two old scanners which I would like to use with my new laptop: Microtek 5800 and Epson 2450. Any thoughts on drivers? Thanks in advance. Lizz