On Linux Mint 10, now have IDE installed.. Plugged in Uno, RXTX mismatch

I got my Uno R3 today. I downloaded the tar.gz file and apparently compiled it and I have the IDE up!! I then plugged in my Uno for the first time, and the little LED near the GND pin is flashing! But in my terminal window I have:

Stable Library

Native lib Version = RXTX-2.2pre2
Java lib Version = RXTX2.1-7
WARNING: RXTX Version mismatch
Jar version = RXTX2.1-7
native lib Version = RXTX-2.2pre2

I suspect I should have had the Uno plugged in BEFORE I extracted the file and executed the "arduino" sh script. Should I reinstall, or is there a solution to RXTX? In either case, what should I do next to try out a sketch... The IDE window says "sketch_aug17a" at the top, but no other text is in there.
Thanks again...
Jim

Hi, Me again... As I noticed that others with RXTX Mismatches said their Bd works anyway, I proceeded with compiling and uploading (in Examples) Blink and it worked! So I edited it for longer blink rates and shorter ones and they compiled, ran and saved well, so I'm off and running! I may try to start on my XP box next.

Still, if Y'all know a solution to my RXTX mismatch problem, let me know.
And thank you Poliveira1978!
Jim