I asked Zoom Text about this and this is what they had to say. "What is the specific version of ZoomText 9.1 you are using (In ZoomText click on Help -> About ZoomText -> Version)? Unfortunately the newer are supporting HTML5, Direct2D and other new hardware acceleration technologies designed to increase the speed and performance of web browsers. These new technologies bring new challenges for accessibility programs like ZoomText. More specifically, these technologies will have crippling adverse effects on ZoomText?s xFont, tracking and screen reading features. Therefore, at this time we are advising ZoomText users not to install or upgrade to Internet Explorer 9, as doing so will result in a loss of ZoomText functionality within Internet Explorer, and possibly a decrease in personal productivity. We do want to assure you that we are working on overcoming these problems and will provide a solution as quickly as possible. The other web browsers like Google Chrome, Safari, and Opera we do not have support for. The Firefox 4 with ZoomText you should have decent support for but not full support for it but you do have to have the updated version of ZoomText 9.19.1 and do the following as well http://www.aisquared.com/knowledge_base/more/zoomtext_with_firefox_4_loss_of_xfont/ for Firefox 4. You are best to use IE 8 or 7 now or Firefox 3 or you can try 4. Thanks." I am running the latest version of Zoom Text abnd the latest version of Firefox. I have done the "fix" suggested here but it had short lived relief if any. My preferred solution is to go back to running Firefox 3 until Zoom Text works around your new software updates. Hint: You would make a whole lot of visually impaired folks on this planet real happy if you got together with the Zoom Text people and worked this out in a lickity-split fashion. Thanks, David