If the problem is one user out of 15, it's not the app: try the basics,
empty the user's Windows Temp folder, check the NIC card, cable connections,
HUB/Switch port changes, what changed in the user's setup "all of the
sudden" like tweaked settings/Windows Profile/ Added or deleted or upgrade
software unique to the user etc.
AutoCAD is very basic in it's requirements: complete access all the time or
it does what you report in your first post: regardless of where the temp
file is, at the time of the error message the connection was broken. Find
out why it broke, it's not easy to figure out sometimes.
--
Dean Saadallah
Add-on products for LT
http://www.pendean.com/lt
--