You know, a simple copy / paste of text would have been as effective and more readable than a giant screen copy...

Looks like you are using a library not compatible with 2.0. Try with 1.5.1.

 PhilHo, thanks very match!
I downloaded and started 1.5.1, and it's work!
Only one problem:

error:
Display 0 does not exist, using the default display instead.
WARNING:  RXTX Version mismatch
    Jar version = RXTX-2.2pre1
    native lib Version = RXTX-2.2pre2

I think the problem is that I went back to an older version.
how do I fix it?

Thanks

I am not sure, as I don't use the serial library, but the errors your report are very common, search the forum for lot of threads on it. I don't recall what the solution is, alas.

Thanks again. On forum, I found way to fix problem.
Now, only error is

Display 0 does not exist, using the default display instead.

Something aboy OpenGL?

Thanks in advance

I think it is related to OpenGL, indeed, although it looks more like a warning that can be ignored than an error.