|You get this after using AutoCAD for a while.|
And sometimes you just can't remove the software causing the problem. So here's a method worth a try.
First, you'll need to identify whether your AutoCAD LT 2002 has Service Pack 1 installed. From the AutoCAD command line enter "._vernum" (without quotes) and you should get something similar to _VERNUM = "K.0.44" (read only).
If it reads K.0.30 then you'll need to install Service Pack 1 first.
Next, proceed to install the patch to fix this error. Some sites refer to it as Service Pack 2.
Retry your AutoCAD LT 2002. The bug should go away now.