Hi James,

Have you received any error messages? Perhaps one saying "SubmitDiagInfo has 
crashed"?
 
Check Activity Monitor and the Console logs, they should show you what is using 
up your CPU time.
If there are lot's of Diagnostic Logs, they might be able to point you to an 
application that is probably crashing repeatedly and causing the problem.
Maybe you can read the first few lines of a couple of such logs and check 
what's going on. 

You could also download & install OmniDiskSweeper.When you start 
OmniDiskSweeper, it presents you with a list of disks attached to your machine. 
Double-click on one, and a new window opens with a “column” view listing every 
folder and file you can access, which it sorts by size as you watch.

You then simply browse through the folders and files and delete the large ones 
which you are no longer using. 
If a file is part of the system, it'll say so on the panel (in the list of 
Packages the file belongs to), so you won't accidentally get rid of something 
that would make your system stop working.
<http://www.omnigroup.com/applications/omnidisksweeper/>

Cheers,
Ronni

17" MacBook Pro Intel Core 2 Duo
2.4 GHz / 4GB / 800MHz / 500GB
OS X 10.6.2 Snow Leopard
Windows 7 Ultimate (under sufferance)

On 12/12/2009, at 9:14 PM, James I Fraser wrote:

> 
> Thanks Barry,
> 
> I wish it were that simple - nothing appears amiss, no duplication at all. 
> Though another 4GB has disappeared since I wrote last :( Time to turn the 
> Airport off and head for the cot.
> 
> Best wishes,
> 
> James
> 
>> James
>> 
>> Recently I had a problem where my hard drive filled up without apparent 
>> reason.. I eventually discovered that for no apparent reason everything had 
>> been duplicated, possibly due to a backup glitch.  I finally tracked the 
>> problem down using "disk inventory X" which showed me where everything was 
>> on the disk and what was taking up all the room.
>> Hope this helps and is not "teaching Grandmother etc...".
>> 
>> Regards
>> 
>> Barry
>> 
>> 
>> On 12/12/2009, at 6:26 PM, James I Fraser wrote:
>> 
>>> 
>>> Please would anyone have any idea how 155GB of free space on a 500GB drive 
>>> fill up in 5 hours with no user activity? The laptop - a MacBook Pro, late 
>>> 2007, 4GB Ram running 10.6.2 was wirelessly connected to the internet and 
>>> McAfee ran finding 431 malwares, but on the backup drive! To email I've 
>>> moved 81GB of pictures to free up drive space.
>>> 
>>> Best wishes,
>>> 
>>> James
>>> 





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