I don't like the reflections on the dock when in 3D mode. If find it hard to see the indicators of what's running. Could someone give me steps on how to do it and how to undo it (just incase I don't like it). Thanks
I don't think it is possible to disable the reflection in Docky. However, Docky has been (for all intents and purposes) replaced by Plank, which is created by the original developer of the Docky Dock.
Here's how to install it: