joshreynolds1982:
On my computer the com 3 port was there when everything was running smoothly. When it wouldn't connect the com 3 port disappeared. On the other computer I started the normal setup. I saw the device in the device manager but when I tried to update it it said the drivers were up to date and it stayed with a yellow triangle.
You need to install the correct inf file. I worked on an automatic driver installer but I am not sure if it fixes current non working devices (I am using an official toolkit from microsoft to install drivers). [MOD] Arduino Enhanced Release 1.0.5 for Windows (installer, drivers, etc) +SRC - Libraries - Arduino Forum <- select the board you own when asked.
If you test it and works for you please post it here so I can know it fixes those kind of problem. If no, maybe I can work to troubleshoot this kind of issues in an automated way 