|
It sounds as if you have somehow changed the Windows file associations for .rtf files to the Calibre Viewer? You need to change them back. Note that is for opening .rtf files outside Calibre.
If instead your problem is only when double-clicking .rtf files from inside Calibre then you need to go into the Calibre preferences->behavior and tell it to use the system setting for .rtf files rather than its own viewer.
|