selection problem....?

i use autocad 2007 in my home...now a days i am facing a problem that is...i select one thing and then i select other component of drawing the first one is dropped....i don't how to prevent this type of problem? thanks advance

Please check that PICKADD system variable is set to 1.

Thanks msasu...

You’re welcome!

Just take care that there is a button in top-left side of Properties window that toggle this variable; maybe you pressed that accidentally.

I suppose that this setting is present to match behaviour in other applications were need to keep pressed to select multiple items.

That is a very good point Mircea, never had it happen to me, but it certainly could easily enough.

This variable can be changed in 3 ways: in Properties, in Options\Selection or by a poorly written AutoLISP routine. I suspect that the Properties button is the most likely to switch without notice.

Yes I agree, before you could stumble over it in the OPTIONS you would be far enough off the main road, that you would need a good reason for being there. It certainly is in a very prominent/vulnerable location on the PROPERTIES dialog.