Have You Seen This?

I upgraded to the latest IntelliJ IDEA 6.0.5 today. And I'm seeing some weird error messages when I ran JUnit 4.3.1 unit tests:

Exception in thread "main" java.lang.NoSuchMethodError:
org.junit.internal.runners.MethodValidator.validateAllM
ethods()Ljava/til/ist;

This is with JDK 1.5.0_11 on Windows XP Por SP2.

Is it just me, or are you seeing something similar?