I have only had it out of the box for less than 30 minutes and started having a problem. The problem is that when if fist went to upload a sketch it worked doing just the basic blink sketch. That worked fine on my computer. When I tried it on another computer with the same sketch it did not write a sketch it just took a while till it finally said.
avrdude: stk500_getsync(): not in sync: resp=0x00
avrdude: stk500_disable(): protocol error, expect=0x14, resp=0x51
Power LED is lit and RX and TX blink for a few seconds when I plug it in, and the onboard LED for 13 blinks very dim a few times.
It also says and does this now on the first computer I used even with renaming com ports and restarting computer.
OS Vista 32
latest FTDI driver
“Computers have enabled people to make more mistakes faster than almost any invention in history, with the possible exception of tequila and hand guns”