Over the past few weeks I've noticed that when I open any .plist file with TextEdit, it opens with black text on a black background, forcing me to manually change the background every time in order to read the text. This wasn't the case in the past, when it would open with black text on a white background. Opening a new TextEdit document or any other .txt file results in the standard black text on a white background. The black background only appears when opening .plist files, which are associated with TextEdit. Things I've tried, but didn't work: Rebooting (naturally) Trashing com.apple.TextEdit.plist Changing association of .plist files to MS Word and back to TextEdit Editing default style for TextEdit. Editing a .plist and saving with the white background 10.5.8... everything current. No new software installed since it last worked properly. Any suggestions?