Hey TS world. I was given a Gateway laptop model # ML6714. The old owner told me that they was having problems with it and that I could have it. I'm trying to install Vista OS and it's telling me that I don't have a hard drive installed( or something to that effect). Can someone help me with this problem. I have a WD 160gb hard drive installed. Not sure how to fix this. Thanks in advance for all the help.