Just tried it on CS1 on Mac. Opened the text wrap window with no document open. Picked wrap bounding bos. The default was zero. Set it to .0625 inches all around. Closed the text wrap window and quit ID.
Launched ID, atarted a new doc and opened the text wrap box. The setting remained at .0625 as I had set it. It did not revert to the original zero.
Remember, if you open a document where text wrap was set, the wrap widow will show that setting.
Using OSX 10.3.9 on a G4