Apple has released a new Mac OS (Operating System) Lion (10.7/8) recently.
If you have a Plustek Scanner with Silverfast software bundle and experiencing difficulties/ problem with Mac OS Lion, this is due to the previous version of Silverfast not compatible with Mac OS Lion.

You will need to upgrade your Silverfast software from your current version to the latest version, Silverfast 8.
Silverfast 8 is available to download in Silverfast website.
Depending on your eligibility, you may be able to upgrade your software for free or for a fee.

Silverfast website states:
If your SilverFast version 6.5 / 6.6 came bundled with your scanner purchased between June 1st, 2011 and June 30th, 2012, please submit your scanner purchase invoice.
If your purchase was made prior to June 1st, 2011, you are eligible for a discounted upgrade, if you own a SilverFast copy of version 5.5 or later.


In order to upgrade your Silverfast software, please:

1. Register your current Silverfast software in Silverfast website if you haven't done so here.
   You will need your current Silverfast serial number and info on when & where you purchased the software/ bundled with the scanner.
2. Once you have register the software, you can use Silverfast's web assistant to validate whether your SilverFast version is qualified for a free or reduced upgrade to SilverFast 8 here.
3. Once they verify your serial number, they will be able to determine your eligibility and provide you with upgrade options.