Just so everyone can find the information a little easier...
If you kill (or perhaps even disconnect for whatever reason) your battery, chances are that you are going to see the dreaded "3 lines (bars) of death" on your dash display. This is apparently normal/common in this instance, and there is a restart technique you follow to "reset the computer". That involves a sequence of key off, key on, run the shifter through the gears once or twice, key off, key back on. Thanks to the
Evilution Encyclopaedia for this and a lot of other information.
Seems when I did this, I had to go rather slow and I heard a click. Maybe I get the click all the time. But it took me two or three tries to get rid of the three lines in the gear display on the dash.
One thing I noted when I disconnected the battery in order to charge it was that my positive terminal was not only somewhat loose, but there was a LOT of corrosion on the battery terminal. Those of you that may be experiencing weak batteries, or if you're a nervous nelly, might want to pull back the carpet and the battery panel and check your terminals for tightness and corrosion. Just saying...