problem uploading to arduino mega 2560

Development Tools IDE 1.x
1

hey just got my arduino mega 2560
downloaded the program, installed the driver and actualy got the led to blink!

but when i tryed to get it to change the brightness it stoped with this message:

Global variables use 13 bytes (0%) of dynamic memory, leaving 8,179 bytes for local variables. Maximum is 8,192 bytes.
avrdude: ser_open(): can't open device "\.\COM3": The system cannot find the file specified.

Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

although i didnt disconnected or any thing!

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2

I don't know why you get the upload error but your digitalWrite() should be analogWrite() if you want to change brightness. Also make sure Pin 13 is a PWM output.

3

your driver are not installed properly, Here drive file . download Install it manually.

drivers.zip (1.19 MB)

4

hey
tryed to upload just the blink example but same error
tryed to install driver from the driver pack you uploaded but it tells me that the best one is installed

any sugestions?

5

Post a link to where you got the board from, that way we can work out which drivers are the correct drivers.

6

tryed to install driver from the driver pack you uploaded but it tells me that the best one is installed

can you share screen shot of device mANAGER & error code while you uploading