Topic: All rails scripts running slow -- require_frameworks() problem?

I'm using InstantRails to build my rails app.  Anytime i try to run a rails script (the two i usually run are `ruby script/server webrick` and `ruby script/runner 'Mailer.check_mail'` (an ActionMailer to check a GMail account over IMAP and retrieve messages).  I have profiled both of these applications with Ruby Performance Validator, and they are both spending like 98% of the time at require_frameworks().  I can see that as being acceptable for webrick, but why would the mailer script be running so slow, especially after I have webrick (and the associated frameworks) loaded and running?

I have tried messing around with setting RUBYOPT=rubygems, but that doesn't seem to help.

I am on a windows box running Ruby 1.8.6, Rails 2.0.2.  Any help would be appreciated!