Arduino IDE 1.0.6. flashes and does not start

Hello all!

After few months of enjoying firs steps in arduino (uno 3) IDE 1.0.4., the IDE stop responding.

That follows an attempt of a friend of mine to install a runaway robot platform but I do not bet that was the cause.

I reinstalled the IDE 1.0.6. several times and I reinstalled the Java as well (both 32 and 64 bits version, I run W7 home on 64).

The Arduino debug list something about "Jave Assistive technology", but only for few seconds then disappears.

I digged in the Q&A topic here, then read carefully (!) Java web-site.

No clue ...

I installed the Arduino IDE on another computer (a virgin one, never being in contact wit arduino) - works perfectly!

Please, help!