Mysterious switching of layers

[JoeC]

In certain drawings, I am working on one layer, I use the fillet command or copy command, hit escape - then the drawing magically switches to another layer as current!:? What causes this?

Thanks

[JoeC]

O.K. everyone, its one year later, and I'm still dealing with this issue. Let me try to explain it a little better...

Using Autocad Mechanical 2008 -

I open a drawing with layer 1 as current layer. I switch to layer 2 as current, draw some lines, fillet the lines together and quit the fillet command. As soon as I quit the fillet command, Acad switches back to layer 1 as current.

This doesn't hppen in every drawing. It is usually drawings that we receive from customers. Is there a setting to control this? If I use plain Autocad 2008 to do the work, I don't experience this issue. Could it be different reactions between standard Acad and Mechanical? Any ideas or suggestions?


Thanks,

Joe

[NBC]

Do you have any custom programs running within AutoCAD (stuff like .lsp / .dvb) which could cause this ?

[JoeC]

Yes. We have quite a bit of .dvb. My colleagues don't seem to have this problem, however, and we're supposedly all configured the same.