This thread looks to be a little on the old side and therefore may no longer be relevant. Please see if there is a newer thread on the subject and ensure you're using the most recent build of any software if your question regards a particular product. Otherwise - post away!
Thanks for letting us know about this. I've committed a fix and it will be included in nightly builds dated 25 Aug 2009 and above. The fix applies only to comparison operators (==, !=, <, <=, > and >=) but this should suffice for most cases. Please let us know if you still see problems.