Debugger does not stop at breakpoints

Hi there,

I am currently trying to debug a Ruby on Rails (3.0.9) application with RubyMine 3.1.1. Launching the ruby proess and connecting the debugger to the ruby process kind of seems to work (at least I do not get any obvious error messages and the rails app actually starts), but the debugger consitently ignores any breakpoints I have set.

RubyMine is running on Ubuntu 11.04 with ruby 1.8.7.

Any ideas?

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*** LOCAL GEMS ***

abstract (1.0.0)
acl9 (0.12.0)
actionmailer (3.0.9, 3.0.1, 3.0.0, 2.3.10, 2.3.8, 2.3.5, 2.3.4)
actionmailer_host_autoset (0.3.0)
actionpack (3.0.9, 3.0.1, 3.0.0, 2.3.10, 2.3.8, 2.3.5, 2.3.4)
activemodel (3.0.9, 3.0.1, 3.0.0, 3.0.0.rc2)
activerecord (3.0.9, 3.0.1, 3.0.0, 2.3.10, 2.3.8, 2.3.5, 2.3.4)
activerecord-import (0.2.2)
activeresource (3.0.9, 3.0.1, 3.0.0, 2.3.10, 2.3.8, 2.3.5, 2.3.4)
activesupport (3.0.9, 3.0.1, 3.0.0, 3.0.0.rc2, 2.3.10, 2.3.8, 2.3.5, 2.3.4)
addressable (2.2.0)
ai4r (1.9)
ar-extensions (0.9.2)
arel (2.0.10, 1.0.1)
authlogic (2.1.6)
bcrypt-ruby (2.1.2)
bkoski-rails_env (0.8.0)
bluecloth (2.0.5)
builder (2.1.2)
bundler (1.0.3)
cache-money (0.2.5)
calendar_date_select (1.15)
cgi_multipart_eof_fix (2.5.0)
chardet (0.9.0)
chronic (0.2.3)
classifier (1.3.3)
clearance (0.8.8)
columnize (0.3.1)
composite_primary_keys (3.0.0.0, 2.3.5.1)
crack (0.1.8)
curb (0.7.8)
daemons (1.0.10)
delorean (0.2.0)
echoe (4.3.1)
erubis (2.6.6)
facebooker (1.0.74)
facebooker2 (0.0.4)
factory_girl (1.3.2)
faraday (0.4.6)
fast-stemmer (1.0.0)
fastercsv (1.5.3)
fastthread (1.0.7)
fbgraph (0.1.0.5, 0.1.0.4, 0.1.0.3, 0.1.0.2, 0.1.0.1, 0.0.9)
feed-normalizer (1.5.2)
feedzirra (0.0.24)
gem_plugin (0.2.3)
gemcutter (0.3.0)
geokit-gem (1.5.0.1, 1.5.0)
ginkel-calendar_date_select (1.16.1.2)
git (1.2.5)
hashie (0.3.0)
highline (1.6.1, 1.5.1)
hoe (2.6.2, 2.6.1, 2.3.3)
hpricot (0.8.291, 0.8.290, 0.8.289, 0.8.288, 0.8.287, 0.8.286, 0.8.285, 0.8.284, 0.8.283, 0.8.282, 0.8.281, 0.8.278, 0.8.2)
httparty (0.6.1)
i18n (0.5.0, 0.4.2)
jeweler (1.4.0)
json (1.4.6)
json_pure (1.4.6, 1.4.3, 1.2.0)
linecache (0.43)
liquid (2.0.0)
loofah (1.0.0.beta.1, 0.4.7)
mail (2.2.19, 2.2.7)
memcache (1.2.13)
memcache-client (1.8.5)
memcached (1)
mime-types (1.16)
mogli (0.0.13)
mongrel (1.1.5)
multi_json (0.0.4)
mysql (2.8.1)
mysql2 (0.2.6)
net-http-persistent (1.4.1)
net-sftp (2.0.4)
net-ssh (2.0.23)
ngmoco-cache-money (0.2.21)
nokogiri (1.4.3.1)
oauth2 (0.0.13)
pg (0.9.0)
polyglot (0.3.1)
rack (1.3.0, 1.2.1, 1.1.0, 1.0.1, 1.0.0)
rack-mount (0.6.14, 0.6.13)
rack-test (0.5.7, 0.5.6)
rails (3.0.9, 3.0.1, 3.0.0, 2.3.10, 2.3.8, 2.3.5, 2.3.4)
railties (3.0.9, 3.0.1, 3.0.0)
rake (0.9.2, 0.8.7)
rbx-require-relative (0.0.5)
rdoc (3.6.1)
rr (0.10.5)
rspec (1.3.0)
ruby-debug (0.10.3)
ruby-debug-base (0.10.3)
ruby-debug-ide (0.4.10, 0.4.5)
ruby-hmac (0.4.0)
ruby-openid (2.1.8)
ruby-prof (0.9.2)
ruby-stemmer (0.8.2)
rubyforge (2.0.4, 2.0.3)
rubyzip (0.9.1)
sax-machine (0.0.15)
simple-rss (1.2.3)
sqlite3 (1.3.3)
sqlite3-ruby (1.3.1, 1.2.1)
st-elsewhere (0.1.5.1, 0.1.5)
thor (0.14.6, 0.14.3)
treetop (1.4.8)
tzinfo (0.3.23)
unicorn (1.1.4)
will_paginate (2.3.12)