I was testing a sketch and uploaded a prototype version to my board. The upload was successful, as all uploads before that one. Now I'm unable to upload any sketch and I have no idea how to solve this.
The error is pretty known: avr... getsync().... My OS: Windows 7. My board: Duemilanove. Before I was able to upload perfectly.
Tried, but unsuccessful: - reset board (led blinks once, so bootloader is fine) - reboot computer - disconnect/connect cables to computer