I just released VueScan 7.0.23 for Windows, Linux and Mac OS 8/9/X.
It can be downloaded from:
http://www.hamrick.com/vsm.html
What's new in version 7.0.23
* Fixed problem with slide feeders on Nikon
LS-1000, LS-2000 and LS-4000
* Fixed problems with HP 5300C and HP 7400C
* Added support for very large scans that require
a buffer of more than 256 MBytes of image data
* Fixed problem on Mac OS X when no USB peripherals
* Fixed problem with three-pass Microtek scanners
Regards,
Ed Hamrick