In many cases the Sun version of the Java JRE can cause problems on various computers. There are a couple of things that can be done about this. One option is to upgrade to the latest version of Eclipse from www.eclipse.org. It has been reported to Cypress that newer versions of Eclipse do not have the same issues with the Sun JRE although Cypress does not have experience with the more recent versions of Eclipse. A second option is to uninstall the Sun JRE and use the IBM JRE instead. This has solved most of the issues customers have seen. There is a link on the Cypress CY3663 web page to download the required files (see Related links below). When installing the IBM JRE follow the instructions in the CY3663 Getting Started document, which can be found in the C:\Cypress\USB\OTG-Host\Docs directory.