Also, whenever I press the reset button on my UNO, the "Serial Port" menu gets greyed out.
Is there a more elaborate way to reset the Arduino that I'm not following (involving the battery and the ground)?
When you plug & unplug the Arduino does the COM port appear & disappear in the Device Manager list?Is something else already using COM3 (Device Manager)?
Unplug the Uno when you're installing/un-installing.
Wait, Battery?You said you were using an Uno. Where does a battery come into play?
Quote from: Carthaginian on Aug 11, 2013, 05:05 pmAlso, whenever I press the reset button on my UNO, the "Serial Port" menu gets greyed out.This is a red flag since pressing reset has nothing to do with the ATmega8u2 chip acting as the serial to usb converter.
Is there anything connected to the Arduino? Are you connecting through a hub?
Quote from: James C4S on Aug 12, 2013, 03:30 amQuote from: Carthaginian on Aug 11, 2013, 05:05 pmAlso, whenever I press the reset button on my UNO, the "Serial Port" menu gets greyed out.This is a red flag since pressing reset has nothing to do with the ATmega8u2 chip acting as the serial to usb converter.On closer examination, this isn't happening. Rather, it "greys out" whenever I unplug and re-plug the Arduino. The problem happens as follows:1. I start the IDE / Arduino plugged in => Serial Port is greyed out2. I uninstall COM3 driver / still plugged in (if I wasn't plugged in wouldn't be visible and I wouldn't be able to uninstall the driver)3. I restart computer / still plugged in4. Windows automatically installs same COM3 driver over again / still plugged in5. I start IDE / still plugged in => Serial Port is now visible6. I unplug Arduino => Serial Port is greyed out again7. I stop/restart IDE, unplug/re-plug Arduino, etc. => Serial Port remains greyed outAt this point, Serial Port remains greyed out until I uninstall COM3 again.
Some good news today. I tried out the board and cable on a friend's Mac, and it worked fine (and as I mentioned earlier, it worked fine when I had Linux). I'm now confident that it really is Window's fault.As for Sysinternal, I've gone to this page http://technet.microsoft.com/en-us/sysinternals/bb963902 . However, it now seems to me that "Sysinternals" names a whole collection of software, not just what I need. What more specific software should I be using?And as a final note, I tried the "disable/re-enable" strategy with no luck. Thanks though for the suggestion.