Hello All, I'm getting the error message "unknown (internal) error" when evaluating the following string source('j:/tmp/test.r') via the (D)COM server. The script test.r is run and everything works, but Evaluate still returns this error. I can avoid the error by using EvaluateNoReturn, but would prefer to use Evaluate. I'm running R 2.0.1 and (D)COM 1.35 on WindowsXP. I've tested it in our own DCOM implementation and using the RExcel interface, and get the same error message in both cases. Thanks in advance for any input Jonnie White