Unity Editor crashing on SerialPort.Open()?

It might not find the port you specified, or maybe its just a glitch

Not true, but serial port code does crash out the editor. Tested using Unity 3.5.3 on Windows 7 (x86)

SerialPort.Open() ok SerialPort.ReadLine() always times out SerialPort.ReadChar() works SerialPort.BytesToRead() crashes the editor I have managed to hang the editor quite a lot.

Same here in Unity 4.1.2 but ReadLine works.

I have managed to get it working with a new Thread and a endless Loop

aka

 string x;
 while(true)
 {
    x = _port.ReadLine();
    MakeSomewhat(x);
 }