The external compressor returned an error

Hello
I get this error message: "The external compressor returned an error"
It occurs after every track, however processes it anyhow when I click enter.
Just I have to make that for each track. I'm totally lost. I am just attempting to rip it to MP3.
I've install LAME in my outer processor.
I am using Windows 7, EAC 1.0 beta 3, Home Premium and the latest edition of lame (3.99). Also the naming system choices I have install in EAC are %tracknr2% – %artist% – %title%.
I'm in doubt but I feel the error message may be connected to this.

Warning
Please help someone.
Thanks in advance.
