Autocad Map Warning

[Hammer.John.J]

"Module AcMapImpExpUI.arx cannot load module AcMapImpExp.arx. Themodule may be missing, or another component upon which it depens may not be configured correctly."

any ideas, sounds like a corrupt install to me? We are running Civil 3D 2009

[nightNday]

I get this sometimes and sometimes restarting CAD does the trick or restarting the computer. I have had to go so far as to do a repair install.