I am using the latest version of Adobe Reader (9.4). I use it to complete Adobe Reader - enabled pdf forms. The typewriter tool is available but periodically stops allowing changes in the font and font size. These areas of the Typewriter Tool are greyed out. You can still add text with the typewriter tool but only with the font and size that was last selected. The only way to fix this this is to use the "Repair Adobe Reader installation" under the help menu but this almost always (>98%) requires a complete restart of the computer. This quirk is extremely annoying and no one seems to know what causes it or how to stop it. Has anyone else had this problem and is there a permanent solution for this problem?