In Scala 2.9.1.RC4, the "-i 'file'" command line argument (which is supposed to preload a file before starting the REPL) does not work. For example, consider a file "preload.scala" containing just 'println("Hello world.")'. Scala 2.9.1.RC4 says "Loading preload.scala..." and never yields the prompt. It hangs indefinitely. Conversely, the "-i" command line arguments works as expected in Scala 126.96.36.199, yielding the prompt after printing "Hello world."