I was recently having a problem with a revcloud command. When our AutoCAD Architecture 08 loads, the command window shows a problem:

Fri March 28, 2008 - 08:45 AMload acrevcloud.arx Unknown command "LOAD
ACREVCLOUD.ARX". Press F1 for help.

If i load this file manually through applications dialog box, it works. I just also tried typing arxload and arxunload and this command does now work:

Command: arxload
Unknown command "ARXLOAD". Press F1 for help.

Does anyone have any suggestions?