There is a compatibility issues with the latest stable release of Java, 188.8.131.52. Downgrading to Java 184.108.40.206 corrected the problem...
- XForms form designer doesn't open when you click to design a form. Instead it prompts to download the file.
This was observed on Linux (SLES 11) with OpenMRS Version: 1.8.3 Build 24510, and Version: 1.9.0 beta Build 25105; with xForms version 220.127.116.11. The same results are observed with Tomcat 7.0.23 and Tomcat 6.0.20. For additional details see the mailing list.