Cannot connect to debugger Follow

Hi,

First of all, RubyMine is awesome, thanks guys!

I'm using #472, Ruby 1.8.7, Rails 2.1.2.  When I start the debugger for rspec tests, I got an error message:

Cannot connect to the debugged process in 10s:

Error Output:
/Users/zlu/.gem/ruby/1.8/gems/linecache-0.43/lib/../ext/trace_nums.bundle: [BUG] Bus Error
ruby 1.8.7 (2008-08-11 patchlevel 72) [i686-darwin9.5.0]

I have reinstalled linecache and doesn't make any difference.  Am I missing something?

Also I'm not able to debug a single example (when I used to be able to debug).

Zhao