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Switch WS -3750G-12S have problem with console logging

Dears ,
please help me in this problem I have switch 3750G-12S  but when we access in the switch by putty give me un knowing sample as below only when move and insert the cable in the console switch port :
and i changed the baud rate many time from 9600 to 19200 or 115200 and others  , So please advise
The best answer: Could you try using hyper terminal or secure crt?