Update Design Centre Block Icons

Some of you may be utilising the Design Centre within AutoCAD, if so you may have created Blocks to reuse elsewhere on drawings. These Blocks appear with a Thumbnail (Icon) image to illustrate what the Block looks like, helping you chose, before placing.

If you then Edit a Block to update it (i.e. add or remove geometry) the Icons in Design Centre do not update accordingly.

However, if you type BLOCKICON at the command line and either type the name of the Block or select the default <*> (updates all Blocks), the Icons will update as required.