Insert Block Issues

Hey guys i relly am stumped with this one.

I have one computer here at work that isn't working when trying to insert blocks.

When simply using the insert command i get a message "block insertion failed"

or when i try to use the lisp files to insert a block i get a "function cancelled" block invalid error message

is there some variable that has been changed on this one pc that isn't allowing block insertion??

Because the blocks and lisps work on everyone elses pc

Have you tried command line entry INSERT? Not so much a solution as a workaround...

it isn't working for all 3 ways of inserting

these are the functions and the error messages i get when using them.

Lisp - *invalid* ;error function cancelled

insert - (Alert message) 'Block Insertion Failed'

-insert - *Invalid*

I'm all most going to resort to uninstalling the acad on that pc and reinstalling.

Any more ideas why we are getting those error messages on this one pc??

Is there some variable that doesnt allow block insertion??

Do you still have the drop down menu Insert- Block, sorry I misunderstood your original post and thought you were using the drop down command. I'm afraid I have no idea unless it's related to a specific block- are you getting the error message when trying to insert the block or when instigating the command?