Thanks! How do you do that?
Just a little magic

Computers these days have become just smart enough to cause problems but not fix them.
Graphics programs and viewers will show photos on your computer with the correct upright orientation even though the exif data specifies a horizontal orientation. AC image software reads the exif data and shows the horizontal image.
My solution in your case was to copy and save your photo, open it in IrfanView, rotate it, re-save, then upload to AC. IrfanView changes the exif data, my old PaintShop Pro program does not. I can also right click the thumbnail in windows and rotate which seems to work but I still don't trust windows.
You can fix photos uploaded with the wrong orientation by going to
Gallery, then
Manage my albums and click on the photo you want to change and use the buttons on the lower right to
Rotate left or
Rotate right.
Wayne