Please help : application doesn't start...

When I launch my application, the window with "starting application" is load and frozen. I have to use ctrl+alt+del to remove it. When the application is in cache, the logo window of java web start is displaying and after a while disappear with no application :( what can I do... ?
Thanks in advance

are you able to start any of the demo webstart apps?
If not, there are plenty of threads in this forum in dealing with what you are seeing. Just do a search in this forum and i'm sure you will see tonnes of solutions :-)
...but if you are able to start the demo apps, then there may be something wrong with either your app, or in it's deployment... turn on logging via the webstart app manager to see if any errors are being logged...

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