Right click on it and select properties, in the next window select the check box where you mark it as executable.
Or, do it from a terminal: chmod +x jPSKmail-2.0.15.jar 73 de Per, sm0rwo Frederic Bouchet skrev 2012-06-20 13:07:
I've download the .jar for the 2.0.15 on my netbook (Mint12) and when i want start i have this message :The file '/home/fred/jpskmail/jPSKmail-2.0.15.jar' is not marked as executable. If this was downloaded or copied from an untrusted source, it may be dangerous to run. For more details, read about the executable bit.Some one have an idea???? in advance tnx Fred F4EED
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