2000 Honda Accord battery/alternator/loud noise

Okay so my problems continue. The battery keeps going dead. I usually jump start it and then it will run the rest of the day. Not that Jump starting daily is a real solution. So as I previously wrote I have replaced the battery and the alternator. Took car to dealer to have electrical system checked to see what is still draining the battery on a daily basis. Of course they turn up nothing. Today I went to start the car, it was dead check battery volts were down to 5. Jump started the car, it started but then it started making this loud grinding noise and then started to smoke. So of course I could not drive it anywhere so I called the dealer and had it towed for them to check. They just called and said car started fine for them and did not make the noise. They are going to keep overnight and check it. Any ideas on what the problem could be? Please HELP! I am going crazy!