What software packages can help fix common problems?

[splorp]

A Newton “First Aid Kit” by DJ Vollkasko.

FixTrax
http://www.config.de/Products/Newton/FixTrax/

BattTrax
http://www.config.de/Products/Newton/BattTrax/

IndexFixer
http://www.modasys.de/htmls/newton/

NewtTest
http://www.pda-soft.de/body_newttest.html

DataRescue
http://download.planetnewton.com/download/util/Info%20Transfer.htm

NamesFixer
http://download.planetnewton.com/download/util/notes8.htm

PrefsCleaner
http://download.planetnewton.com/download/util/Security14.htm

Package freezing packages?

CardEject
http://www.sbm.nu/englisch/newton/cardeject