Step 10Create the Gerber files
iImage Information

This is the important bit. You need to click on each one of the tabs circled in green and ensure that Mirror (circled in yellow) is off. As you click through the tabs you will notice the Nr and Layer lines highlighted on the right will change. One default you might want to change is component values - in my copy this was deselected and the silk screen ended up with U20 but not the actual chip - eg an IC might be 74HC04. Click along the tabs to Silk Screen Cmp, and click on 27 tvalues. Once all the mirror boxes are definitely unchecked, click on Process Job (red circle).
I also have the same problem .. "Fill pads" is checked and I cannot un-check it.
Please help if you figured out the solution.
Thank you very much,