int_Sat:
hi
im having alot of problem interfacing the Arduino with laptops and even some PC's.
i keep getting this error tk500_getsync(): not in sync:, i tried it on PC and it worked fine being picked up as Port 29.after this i decided to buy another Arudino exact same as before but from my university. i had the same problem, ive been asking but still had no real solution to this all, the Second Arduino uno SMD i got get picked up as port 27 on PC's but on laptops does not get connected. i have even gone into control panel to select the device but just comes up as unknown device.
Which version of Windows are you using?
Which IDE version are you using?
Are you booting your PC with the Uno already plugged into a USB port or are you plugging it in after the PC has booted?