If some keyboarder of the old, old school sends you a message in all caps that you have to read even though the SHOUTING is giving you a headache, there’s a quick fix. Copy and paste the text into a Word document and use the “change case” feature to convert it to upper and lower case. Select all the text (Command-A on a Mac), go to Format -> Change Case . . . and choose Sentence case. The capitalization won’t be perfect, but trust me, it will be a huge improvement. OpenOffice Writer also has a Change Case feature in the Format menu, but unfortunately you have to settle for all lowercase.