Just downloaded Photoshop and there was a pop up box that mentioned my RAM and something about not enough RAM left for certain 3D features, filters, and image/color graphics(?). I continued. Everything was working fine the first time I went to use it, but the next day I opened the program and could not get any colors to show up. How can I fix this?
Go to Image>Mode and make sure you color is RGB, not gray scale. Also, a preference reset might help: Ctrl/Cmd+Alt/Opt+Shift as you initiate Photoshop startup.