Serial Monitor Problem

Hi,

Since two days, my Teensy++2 giving me an error when I clicked Serial Monitor:

processing.app.SerialException: Serial port ‘COM10’ already in use. Try quiting any programs that may be using it.
* at processing.app.Serial.(Serial.java:173)*
* at processing.app.Serial.(Serial.java:92)*

What is wrong with me? There is no any other program which uses COM10.

Thanks indeed.
Murat

It seems Teensy does not uses a fixed serial port (like the Leonardo), you should ask in the Teensy forum.

Thanks Eried...

It was working since six months but suddenly gave this error. Let me try Teensy's forum..

Murat