These are the drivers that were installed, the screenshot is from the Device Manager:
http://i.imgur.com/hJFF3.png It's too big to use the IMG tag.
Any luck yet? When I installed the usb serial driver on my computer, com 10 was default. What happens when you plug the Arduino in the usb?
When i first plugged in my arduino, it didn't find the drivers, but it recognized a unknown USB device. I then downloaded the Arduino software and instaled the drivers shown on the screenshot.
Do you have the FTDi driver installed properly?, i donot think so because if you had that it would have shown USB SERIAL DEVICE inplace of COM3 number and the BLINK will happen irrespective of diver's installed because BLINK example comes already loaded when you buy the NEW Arduino so probably check out your FTDi FT232RL USB to Serial converter driver.
Secondly, What message you get in the Arduino IDE when the download fail's, is the program compiling successfully ?
I think so, i have alredy uninstalled and installed again, i'll try to re-install them after i write this post, but to no succes. The names shown on the screenshot are exactly as you describe, but i'll check somewhere else for driver problems. Also, Arduino IDE gives me no error message, it just compiles the sketch and try to upload it, but never finishes. If i select COM1 as the serial port, it gives me the default "you have set the wrong port/board" error of out of sync.
There are some additional troubleshooting suggestions here: http://www.arduino.cc/en/Guide/Troubleshooting#upload
Before posting here i already did all those steps, searched the internet for about 2h reading some forums, here is my last resort. The only other person to have experienced that TX light blinking constantly was some guy that had his board settings wrong, wich is not my case.
I uninstalled the drivers and when i plug in the arduino again, it installs them automatically and recognizes my board normally. The Unspecified Device that is shown at Devices and Printers it the "FT232 USB UART". After these steps, i downloaded again the Arduino IDE, but nothing changed.
I'm also trying the "reset trick", where i reset the board and upload immediately. So far, no success.