Dont know what happens and im going crazy.
Im new in arduino word, i bought a new arduino duemilanove complatible board. When it arrived i tested it with "blink" sketch, and it worked correctly. two days later i was using it again and it stoping working, now i cant upload programs to the board. When i try to record the programs it start to upload but when process is 90% completed, the loading bar, stops and gets frozzen. And dont know why, if it worked correctly why dont work today?
I have tryed in other computer and doesent work too, so i think its a board problem, but dont know what to do. some help?