Can someone help me

ive come to the point now where i wish to jump on my arduino and chuck it in the bin!!!!!

ok so ive been having issues with uploading to the arduino mega 2560,

everything was working fine... and then bang one day it just stopped. so i ordered another cheap and cheerful one online, and the same thing,

i initally thought it was my pc playing up as it was loaded with all sorts of crap.. so today ive formatted my pc and still no joy!!!

i have even tried a friends pc who has a arduino aswell, his programs fine and both my say they fail to communicate to the board.

ive tried running the loop back test but nothing reports back when i use the serial monitor.

im ive got no clue why neither my arduino or my clone are not working ?

can anyone help ?

Regards.

PS i forgot to add i can normally upload a blank project.... but the second i try to upload my project or a sample project included in the arduino software nothing

the arduino is using the correct comport.
and i can see it in device manager.

Did you disconnect all hardware when uploading? especially pin 1 & 2?

yes ive even bought a new board and tried with nothing connected still get nothing

Which IDE are you using?
What sketch did you try?
What platform are you using?
What com port did you use?
Which board did you select?

im using the mega 2560 and software ver 1.6.4
ive tried many sketches from the examples menu, (blink, fade, ive even written my own sketch to power up a pin)
the arduino is using com3
and the board is set to Arduino mega or mega 2560
the programmer is set to ArduinoISP

the com port board is set to 9600

can you share screen shot of device manager / IDE while port & model slected. Also let us know when you uploading code r u getting any errors

this is a little strange, ive check in device manager and the arduino says its on a different com port the what the arduino software says.

Well you certainly can't use COM1 to talk to an Arduino connected to COM3. Did you try re-starting the IDE? Did you try re-starting the PC?

yep ive tried restarting the pc and arduino,

ive also formatted my pc and reinstalled windows incase it was something on there...

the thing is ive got several arduinos and several pcs which none of them work in any combo ?

i cant upload the error i recieve as it exceeds the 9000chars so ive provided a pastebin link

http://pastebin.com/CMUnPMBV

its worth noting that my code compiles fine....

ok it seems the driver for the arduino was currupt!!! i resolved my issue with the following steps

Goto Device Manager
Right Click Arduino
Uninstall Driver & Remove
uninstall arduino software
reboot pc
reinstall arduino

job done all was working fine.