Hey smart computer people, I've got a question. My Dell Inspiron 1545 that I bought about 4 months or so is only registering my disc drive intermittently. This is the first time I've used the drive since I've had the computer so it's driving me batty. When I put a disc in there it makes a weird burring and clicking sound and sometimes will read the disc if I tilt my laptop at a certain angle. If I leave it flat on the desk it doesn't register the disc or drive. Any idea?