Really sorry.
what happened, is i posted a same thread in Q&A twice. it was abt my pc problem. many guys immidiately replied tellling to delete the perticular tread.i admit, its my mistake, but what happened was i was posting the tread and the same time my net got disconnected. so i though the post was unsuccessful so i posted it again. but afterwords both thread were there. i really wanted to delete one but how? i dont know. please tell me if any way is there. sorry for the same,.