Over a year ago my Mac's hard drive broke, anyway it was going to cost 200 euro to get it fixed and I had already got the computer fixed twice since I had got it in 2007. I didn't want to pay that much when it would probably break again so I just left it alone until about a week ago when I decided to buy a new hard drive and install it myself. Anyway the hard drive seems to work ok, but when I try to install Tiger (came with the laptop) about halfway through the second disk I get a message saying please try installing again. Is this a problem with the Install DVD (it worked perfectly when I first got my laptop but that was about 3 and a half years ago), in which case would buying Snow Leopard fix it (I was considering doing this anyway). Or is it a problem with the hard drive or something wrong with the computer itself?