RDA stops on downloading

After i choose the phone and click "start" RDA stops on downloading application:
My system is verified by RDA page and i have javascript, browser, java webstart installed.
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I wait about 5-10 minutes on that screen, i click cancel and click the button and run the downloaded .jnlp application again and same thing happens but on different loading percentage, betweeb %30 and %70.
I started RDA when i am writing this post and used about 10 minutes.
I successfully installed application (theme) but couldn't find how to set my theme on phone.
I try again.
Regards...

I completed testing. Should i delete my installed .sis file on remote device after test?

Problem is fixed now, no waiting on startup and runs accurately.
Are we suppose to delete file and installation after the test? I can delete .sis file but do not know how to uninstall application.
Thanks!

we are using an automated cleanup script on the Symbian devices, that attempts to uninstall the apps the users has installed during the usage session. however that is not fail proof, so especially if "sensitive" data was tested it's highly recommented that the user does that manually. the uninstallation method varies a bit based on the device model, but what should work across all device models is unstallation from the "application manager".