Some features in many Adobe applications require the Oracle Java Runtime Environment (JRE).

(When you start an Adobe application, you are prompted to install Java if it isn't already installed.) In a corporate IT environment, be sure to preinstall Java, or make sure that it can be installed through firewalls or other security software.

If the Java Runtime isn't installed, the following issues can occur in Adobe applications: When you scroll, the result could be the opposite of expected due to the "Move content in direction of finger movement when scrolling or navigating" feature.

To alter this behavior, deselect the feature at the top of the Mouse section within the System Preferences.

Mac OS 10.7 has some exciting new features such as Autosave, Restore, Versioning, Full Screen Mode, and more multi-touch gestures.

However, the Adobe Reader and Acrobat plug-ins don't function as expected in Live Cycle.

And Acrobat workflows that require either plug-in to render PDF documents in Safari 5.1.Recommendations: If you use forms, digital signatures, portfolios, guides, 3D, extended PDF documents and rights management, and require the Acrobat plug-in to render PDF documents in the Safari browser, Adobe recommends that you continue to use Safari 5.0.x and Mac OS X 10.6.For Adobe applications to fully support these features, additional product development is required. For related information, see Mac OSX 10.7 preference to "Restore windows when quitting and re-opening apps" doesn't work with Adobe applications.Adobe Reader plug-in and Acrobat plug-in are not compatible with the Safari 5.1 browser, included with Mac OS 10.7 and for 10.6 in July 2011.Adobe Reader and Acrobat continue to work as stand-alone applications on Mac OS 10.7 and 10.6, and render PDF documents outside the browser.In addition, Safari 5.1 renders PDF documents natively.