Thanks guys -
I downloaded trial version of Coriolus, which showed no fragmentation, and which also recommended running disc tools first - which I did. Then I upped the RAM allotment for Photoshop. That helped a bit, and other things now seem to run better, too.
---- Britt Griswold <[log in to unmask]> wrote:
> Here is the scoop on file fragmentation as of OS X 10.4
> defrags files but does not defrag space between files.
> Qoute from the above site:
> "So, now, instead of using a rough rule of thumb on when you should
> consider defragmenting your hard drive, what I recommend now is that
> folks check to see how much free contiguous space there is on their
> drive routinely, once their drive is over 50% full. You can do this
> quickly and easily with the free demo of iDefrag:
> Or the free utility ShowVolumeFragmentation
> There is no need to purchase anything until and unless you need to. When
> you have no large chunks of free contiguous space left, you can expect
> problems to begin to appear if you don't defragment your drive. Note
> that if you let this problem advance too far, it may become impossible
> for any utility to work on your drive, protesting that there isn't
> enough free space on your drive for it to be able to run. (This despite
> the fact that you may have many gigabytes of "total" free space left on
> your drive.)"
> Bruce Gaber wrote:
> > Well I know Britt will weigh in with true wisdom on this one, but just
> > to say, that yes, Mac drives do need to be defragmented. I use Tech
> > Tool Pro for the job. My PowerBook was running very slow for a number
> > of functions. Defragging helped considerably.
> > While I have no real sense of how long a save should take, a 1 GB file
> > is pretty large, and I would not be surprised at it taking at least a
> > minute.
> > Bruce