DiskWarrior is the best at rebuilding the directory, but it doesn't optimize the whole drive (just the directory). TechTool Pro 4 JUST came out last month and it does optimize the entire drive. I'm told it does a good job at rebuilding the directory too. It's got a lot of other functions too. I use both, but because of the disk optimization I'd now recommend TechTool Pro 4, which can be found at http://www.micromat.com/tt_pro_4/tt_pro_4.html. On 12/15/03 5:56 PM, "iBook List" <ibook at lists.themacintoshguy.com> wrote: > Date: Mon, 15 Dec 2003 08:03:48 -0500 > Subject: [P1] Utilities to run on ibook > From: Erin Randel <bluelight at en.com> > Message-Id: <1F4785B2-2EFF-11D8-860C-000A9585992C at en.com> > > Have any of you had problems with norton utilities, like it causing > bigger problems? I've heard vague rumors about this, but not enough to > base a decision. > > I have a 900 ibook in need of some third-party repair utility, > according to applecare. The persistent problems disk first aid finds > are missing thread count and invalid volume file count. > > They said I could use Diskwarrior, Drive 10 or Norton Utilities. > > Macmall says they all do the same thing, small dog said diskwarrior's > good but found they don't carry it anymore. I can get norton system > works for about $30 with a rebate at the local wholesale club, but how > do I find out whether it can help me? > > Am i supposed to run a utility every day or week to keep my ibook > healthy? >