I\'m having issue with running my Eclipse with the following config:
eclipse.ini
-startup plugins/org.eclipse.equinox.launcher_1.2.0.v20110502.jar --
You can also try closing other programs. :)
It's pretty simple, but worked for me. In my case the VM just don't had enough memory to run, and i got the same message. So i had to clean up the ram, by closing unnecessary programs.