I'm trying to install eclipse RCP 64 bit version on my Mac (10.7.5).

Whenever I tried to launch eclipse, I got this crash screen.

When I tried to start eclipse using command line, I got Segmentation fault: 11 error message.
What might be wrong? RCP 32bit works fine, and eclipse classic 64bit version works also fine.
And it is just OK to use RCP 32bit version on Lion?
