How to reprodcue
1.) Create a non admin user a/c for Vista machine. Set it to UAC enable
2.) Execute "javaws -uninstall", to make sure no pre downloaded jar files exist in the machine.
3.) Install latest respin pit bundle
http://j2se.east/arc/1.6.0_12/pit/2008-12-19.18_06/
4.) Provide the admin password when asked for it.
5.) Please make sure that you can install JRE without any issue. Now open JCP and go to viewer
Expected Behavior:
It should show preloaded jar files downloaded for Java FX
Actual Behavior:
No pre loaded jar files are shown
This issue is reproducible on another machine also (urti064.india.sun.com) with Normal User and UAC Enabled.