Apple's Help browser is a central tool that many applications use to present help information. Most of Apple's programs make use of the browser, and people who use iLife, iWork, and Apple's Pro applications may rely on the browser to help them through problems or find desired functions. This centralized approach is useful; however, if a problem occurs it may prevent help information from being seen in all applications that use the browser.
Recently MacFixIt reader Rod ran into a problem where his help viewer stopped showing help content after installing iLife '11, and after spending time researching the solution he shared his findings with us:
After installing iLife '11, I discovered that the Help pages for iPhoto '11 and iMovie '11 on my machine were blank. The Help files for the other applications installed with iLife '11 worked normally. Looking inside the iPhoto '11 and iMovie '11 application packages showed that the Help files were actually there, so I was puzzled as to what was happening, especially as I could not find any other references to this problem on the Web.
After doing this and closing and reopening the Help Viewer, the missing content for all three applications could be viewed.