Re: Renaming.
yes this "fixes" things after the update.
You delete the UPDATE.XBE file from the original XboxLive installation disk (the new one) and from any game disks which contain it. This prevents accidentally starting it.
If you place the new XboxLive installation disk in without doing this, after you have restored Evolution-X, you box will be nuked!
Some Xbox enabled games (such as NFL2k3, Whacked, etc.) will also update the dashboard. You'll also need to remove this file from those disks.
In addition you must make sure that no one ever attempts to go into "NEW ACCOUNT" creation. When someone does this (btw: this has already happened to one poster here!) your dashboard gets the update over the internet again, and you are back with a dead MSDASH!
To boil down the problem into it's simplest terms.
XboxLive Update ALWAYS looks at "C:\xboxdash.xbe".
If it is NOT the MS updated dash, your MS dashboard gets totally screwed up.
Even copying it back (alone) from a backup is not enough to fix it, you need to copy the ENTIRE C:\ partition back from the backup to do so.