[greenrun]

Hi All ... I'm stuck on what seems a small problem.

When I first installed Calibre about 6 months back I found I liked the internal reader, ebook-viewer. I changed that to my default for .mobi and .epub files and used it regularly. One day these file defaults got changed and I have never been able to re-select ebook-viewer in the Windows 7 control panel. I find the .exe file and select it, but the preference is never saved. I've tried re-installing and repairing Calibre, and can't get it fixed.

Any insights would be appreciated.

George