"Some of the icons in the Ribbon bar are 'grayed out'."
Certain icons (for example Cut on the Home tab) are only highlighted once a design is shown on the screen. Also, when there is a design on the screen, some functions that might cause a mismatch between the size of the design and the size of the picture are not available in the Picture window.
"I have changed grid color and spacing and now I wish to return to the original settings."
Use mySewnet™ Configure to change the grid color. Follow the instructions in mySewnet™ Configure and select Blue Gray (RGB values 100, 102, 153) from the standard color drop-down on the Grid Color button.
Use the Size setting on the View tab to change the grid spacing. Set the Grid Size to 10.
"I have changed the screen background color and now I wish to return to the original light blue."
Use mySewnet™ Configure to change the background color. Follow the instructions in mySewnet™ Configure and select the RGB values 211, 233, 255 in the Colors dialog box.
"I am looking for the origin of my fill area, but there is no orange circle."
The origin is usually shown as an orange circle. It may be a different color, depending the underlying picture or background colors. Also, the origin can be moved anywhere on the work area. Try Zoom To Fit to see the whole work area.