I used Photoshop and worked on my laptop (for an image) to white out the background and purify the parts of the image.
I then shipped the image to Dropbox. I then then retrieved the image to another computer/monitor. The image appears yellow in parts that I originally Photoshop'd to be white.
On my laptop it looks fine, other desktops/computer it is coming up yellow in parts.
What are the exact RGB values in the »white« regions?
Please post a meaningful screenshot with some Colour Samplers and including all the pertinent Panels.