AutoCAD 2000 and Memory usage

We are using A2K with patches on W2K sp3. The computers have 1Gig of RAM. We work with large 3D models with many XREFs attached. Total of 70Meg. When the
user opens the file the status shows 670Mb or so of free physical memory. After they work in the drawing for a few minutes, the status command shows under 100 meg left and later still their looking at snake eyes (0.0).
Where did the memory go (rhetorical question)? Why is acad not freeing it up after certain operations, such as plotting? Anyone found a trick to freeing this memory without closing the session? How is 2004 in handling memory. let me guess, worse?
The users tell me they need to have the xrefs loaded so they don't hit anything when routing pipe. Whatever, I'm a computer geek. I don't get involved in their projects. I still argue that their models are too damn big and AutoCAD is a memory hog. bg
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload
One item to check is that the xrefs are loaded as overlays, not attachments,,,,

We
the
up
freeing
let
big
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
<%-name%>
Add image file
Upload

Polytechforum.com is a website by engineers for engineers. It is not affiliated with any of manufacturers or vendors discussed here. All logos and trade names are the property of their respective owners.