I'm having troubles getting a program to upload to my Duemilanove ATmega328. I receive the error message of "Build folder disappeared or could not be written." I think the problem is that when I plugged in the Arduino at first, Windows (Vista) immediately took over and installed drivers for it and I didn't get a chance to install the correct ones as described in the instructions.
How do I uninstall the Window-installed drivers and install the Arduino ones? It looks like Windows recognizes it as a USB serial converter. I've told the computer to replace the drivers (under Device Manager) to no benefit. Any ideas?