Digital Blue offers a replacement Qx3+ Computer Microscope base. To order call their customer service team at (US)1.888.800.0502 (M-F 9-6 CST) http://www.digiblue.com/

Updated software is available at: http://www.intel.com/support/intelplay/qx3/index.htm

Can be used on a Mac (Mac OS X 10.3.5 or later - Mac OS X 10.5 (Leopard) compatible) using a program called miXscope, http://www.edhsw.com/mixscope/