can any one confirm this: i tested: 1. m : Message( date > "2007-Mar-12", message : message ) 2. m : Message( date == "2007-Mar-12", message : message ) 3. m : Message( date < "2007-Mar-12", message : message ) only 2 works. 1 and 3 throws: java.lang.RuntimeException: Operator '40' does not exist for StringEvaluator at org.drools.base.evaluators.StringFactory.getStringEvaluator(Unknown Source) at org.drools.base.EvaluatorFactory.getEvaluator(Unknown Source) at org.drools.base.EvaluatorFactory.getEvaluator(Unknown Source) at org.drools.semantics.java.RuleBuilder.getEvaluator(Unknown Source) at org.drools.semantics.java.RuleBuilder.build(Unknown Source) at org.drools.semantics.java.RuleBuilder.build(Unknown Source) at org.drools.semantics.java.RuleBuilder.build(Unknown Source) at org.drools.semantics.java.RuleBuilder.build(Unknown Source) at org.drools.compiler.PackageBuilder.addRule(Unknown Source) at org.drools.compiler.PackageBuilder.addPackage(Unknown Source) at org.drools.compiler.PackageBuilder.addPackageFromDrl(Unknown Source) at com.sample.DroolsTest.readRule(DroolsTest.java:57) at com.sample.DroolsTest.main(DroolsTest.java:23) ____________________________________________________________________________________ Moody friends. Drama queens. Your life? Nope! - their life, your story. Play Sims Stories at Yahoo! Games. http://sims.yahoo.com/