Updating the Library

[Willy Tschager]

In case you didn't mix official and unofficial or custom parts:

* Delete Complete.zip in the LDraw root folder
* Delete the P and Parts folder
* Delete the Unofficial folder

* Download a fresh Complete.zip to the root
* Extract the P and Parts folder
* Download a fresh unofficial zip
* Extract the P and Parts folder to an Unofficial folder in the root.

w.