more about that disappearing disk space

[Dr. Trevor J. Hutley]

As previously posted, my (start-up) OS X (10.3.2) disk space keeps 
disappearing.....

It seems to happen more and more.  I had my suspicions, and have been 
following this carefully.

It is almost certainly due to the use of Omnigraffle 2.2 (bundled 
with my Al-book), which I am using more and more to create diagrams 
and charts.  It is very good software, BUT somehow, it causes my disk 
space to disappear in large chunks.

Normally I have around 2 Gb free.  Now I am getting the system 
warning "little space left on your start up disk" .  I only have 81 
Mb free.  I have just created a chart of the Periodic Table, which 
itself is only a 68k file.  The exported GIF from this file is 712k. 
But the process of creating this and exporting it has consumed about 
1.8Gb of disk space.  Quitting Omnigraffle has not released the space.

I had to re-start to recover the free disk space (now at 2.01 Gb).

I am not blaming Omni, just making the observation.

There may be other software that also has this effect, but for now, I 
know that Omnigraffle is definitely one of the culprits of my 
disappearing disk space.

regards,  Trevor