Hi, I'm trying to upgrade my MacBook Pro's 13" (2009) HDD, but am having problems with getting the t6 tork mount screws out of the old HDD drive. I got two out but the other ones are just causing the screwdriver to spin, even though they are the same size. Which makes me believe they are stripped, tho I haven't touched them before! Is there anything I can do? I've had to put the old one back in for the meantime. Thanks, Chris.