How can I make Acrobat Reader (acroread) update its display?
This problem is with Acrobat Reader that doesn’t detect that the file has changed. Dekel says: There is an cumbersome way to manually force update in acrobat reader: after you update the pdf file in LyX, go the acrobat reader and type Ctrl+r Under Windows it’s not possible to edit a file while it is displayed in Acrobat. It’s better to use Ghostview as pdf-viewer when editing documents, because then you will see the changes immediately. But wait! there is a solution… See: http://wiki.lyx.