[dsullivan]

Hi. I recently installed Calibre and at first it worked fine. It opened epubs with three columns, contents on the left, html (I think) in the middle, and clear text on the right. I didn't care about editing, since I had no problem editing my files stored in documents. I wanted only to view the documents that I had uploaded in Lulu and Smashwords.
I fiddled with it trying to get view only, and ended up with a mess. Now when I open a file from lulu or smashwords, calibre shows a blank page, no columns.Nothing I do seems to help.
Does anyone have an idea of what I may have done to mess it up, and how I might go about fixing it? I would truly appreciate any help. Thanks.
Sully