robtillaart:
If you open the device manager and open the section of the com ports (start-> computer-> manage-> devicemanager (something like that)
do you see the comport being added/removed when inserting the Arduino?
Thanks for your reply. I've been hunting around and asking so far no one can provide a solution.
I have a unknown device "USB Serial" in device manager which disappears when I reboot the Teensy2.0, and reappears when I let go of the button. I CAN program the board and it works but I cannot get any serial.println() output in the Serial Monitor in Arduino 1.0. The basic serial example (for example) doesn't work. I'm positive this is DUE to the serial port being SET in the Tools menu, but it REFUSES to be UNSET from the IDE.
Arduino drivers can interfere with bluetooth devices, don't know the details, but you could try to turn them of.
Reinstalling the IDE can be done rather quick, so that can always be done.
I have no bluetooth devices on this laptop. And prior to SELECTING COM3 it worked 100%.
I simply unzipped Arduino into my project folder and it works. I tried making a second folder and unzipping Arduino again but the SAME setting came back in the new installation.
So this must be set outside the folder likely in a system folder or in the registry. But so far no one can confirm my assumption is true or not.
I really don't want to have to get another computer for this...