I will start that I am on Windows 7 64bit trying to use all drivers and whatnot from Arduino 1.0.4.
I have an new Arduino Micro that has been working quite well for the past 2 weeks that I have had it but now am having a terrible problem.
Whenever I reset / connect the Arduino while plugged in via USB, random things seam to happen and now I can't upload anything. The Arduino doesn't show up in the device manager in any form and the "Serial Port" menu in the programmer is empty. The problems that occur seemingly at random are:
1) It shows up under the device manager as COM 6 (usually) under the name "Arduino Micro Bootloader". But after a few seconds it disappears and the device manager refreshes and there is no sign of it. Usually an error from windows shows up saying that the device has malfunctioned (USB Device Not Recognized).
2) It shows up as Arduino Micro (but with the "no drivers" icon in device manager) and windows tries to install the drivers for it using Windows Update. I can't select the driver location myself and it eventually stops saying that the device was unplugged.
3) I get either an unknown device or unknown usb device in the device manager. When I try to install the drivers it usually fails but sometimes it will go through but it doesn't seam to change much.
4) It shows up as Arduino Micro properly with a COM number but then disappears after a few seconds and when the device manager refreshes, there is no trace of it.
For a while I was having problems with the sketches just not uploading - the board was showing up but whenever I uploaded a sketch it would freeze at around 80% and eventually die with some error (don't remember what it was). I was able to fix it with the trick of holding the reset button and then clicking the upload button. This lasted for about 10 uploads but then it went into the current issue I have.
This seams to have started for no real reason. I have been working on this program for a few days and I have been uploading sketches to it constantly without issue. It just started the other day and degraded into what I have now. I have tried restarting the computer, using different USB cables, and different USB ports on the computer, to no avail.
Any idea what could be wrong? I would be very sad if the board had to be sent back...