Oh you are right, I weren't waiting enough-_-
Gosh I shouldn't make stuff like that when I undersleep... Thank you davidpbrown.

I don't have Windows but I wonder that if you left it for a moment the Starting BitShares would switch to reindexing and that can take a while on first pass.

I am using Windows 8.

Here what I see when I click on the icon for version 0.4.20
http://pbrd.co/1yDHsIG
From there the image stay forever and when I try to click somewhere the image disappears.

Alternatively I get that:
http://pbrd.co/1yDJxV9

When I launch with the command line the same thing happens, it changes nothing.

Useful to suggest which operating system you are using. If Linux, then try launching from the terminal and see what that suggests.. that might also work in Mac and maybe even Windows terminal launch will barf feedback.

My BTSX wallet no longer open when I try to run it. I had an old version 04.5 or something like that, so I have just installed the 0.4.20 version to see if it solve the problem but still it doesn't working, nothing happen when I try to launch the wallet :(
What could I do?