No valid license found

Hi all,
I'm trying to install PHPStorm on Ubuntu 13.04.
I have just downloaded the trial version few minutes ago for the first time.
Unfortunately after following all the instructions and launching ./phpstorm.php the following Exception appears on the terminal:

[    236]  ERROR - nse.impl.GeneralLicenseManager - No valid license found
java.lang.Throwable
    at com.intellij.openapi.diagnostic.Logger.error(Logger.java:113)
    at com.intellij.ide.a.f.ab.a(ab.java:105)
    at com.intellij.idea.MainImpl$1.start(MainImpl.java:44)
    at com.intellij.idea.StartupUtil.prepareAndStart(StartupUtil.java:114)
    at com.intellij.idea.MainImpl.start(MainImpl.java:39)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at com.intellij.ide.plugins.PluginManager$2.run(PluginManager.java:88)
    at java.lang.Thread.run(Thread.java:744)
[    239]  ERROR - nse.impl.GeneralLicenseManager - PhpStorm 7.1.3  Build #PS-133.982
[    239]  ERROR - nse.impl.GeneralLicenseManager - JDK: 1.7.0_51
[    239]  ERROR - nse.impl.GeneralLicenseManager - VM: OpenJDK 64-Bit Server VM
[    240]  ERROR - nse.impl.GeneralLicenseManager - Vendor: Oracle Corporation
[    240]  ERROR - nse.impl.GeneralLicenseManager - OS: Linux

Any hint about this?

Thank you!
cghersi