Open an existing document, select the png tab. There is no image. Moving the cursor a line up or down will display the corresponding png.
The png tab should be refreshed on open.
Also fixed another small bug, where if you put the cursor above the first page, gray image displays, then move the cursor down down down into the first page text, the page would not redisplay.
Open an existing document, select the png tab. There is no image. Moving the cursor a line up or down will display the corresponding png. The png tab should be refreshed on open.