Using Leopard 10.5.8. I'm not sure how it happened, but suddenly I have lost the ability to change some settings in print dialog boxes. In any print dialog box, the top part of the window allows you to select which printer, any presets, the number of copies, whether or not you want them collated, and which pages. Below that is a drop-down box that typically displays the application name. If you select the triangle in this drop-down box, some other options appear: Layout, Color Options, Paper Handling, Cover Page and Scheduler. All of these options work fine. Below, these however, are another set of options that are all, I assume, provided by the print driver. On my HP Photosmart C7200, the available options are: Two-Sided Printing, Paper Type/Quality, Borderless Printing, HP Real Life Technologies, and Printer Driver Information. If I choose any of these options that appear in the lower part of this drop-down menu, nothing appears. The application name remains in the drop-down box. In other words, I have lost the ability to choose two-sided printing, change the paper type or print quality, cor hoose borderless printing. Any suggestions?