hey ive been messing around with my new arduino uno for the past 3 hours but i still cant fix the problem. i downloaded all the programs needed and drivers but when i plug in the arduino and try and download the "blink" sketch, it will load for 5 seconds then say "Serial port "Com1" not found" When …

cant change serial port!! please help soon

system April 19, 2011, 5:48pm 2

?? What computer and Operating system??

Then maybe we can help....