jaza

My Sims 3 screwed up so I uninstalled it and am now trying to re install it but it won't load after file 3 out of 517 it has been on file 3 all day and it has no timer down the bottom telling how long it has got left. I tried the mac resting twice and resting the re install four times. I have a 2.66 ghz macbookpro with 4gb ram with 100gb free hard drive space so its not that. Also the cd drive is constanly powering up and down, i don't wanna break my mac by leaving it in there, so I Don't know what to do, please help??,, i also removed all the other files our of documents and the library.. as well as, i might need to manually unintall some other stuff that the reinstall might be clashing with, if anybody knows what is going on please help... thanks in advance