My background image keeps changing to black. My menu items do not appear in white.

I don't understand why when I am editing the color of the Menu items, it will appear in Upfront but not when I open the website in another window. I've checked the website in both Chrome and IE, and the white color that I want the menu items to appear in doesn't appear.

Now recently I have another problem. The first background image I am using (the mountains) appears to show for a few seconds then suddenly turns black. Again, this shows in Upfront but not when I view the site in another browser.

It's been almost a week and I have not had an answer for either problem. Please help!