>>Wouldnt selectedbackcolor imply that the cursor need to be on that cell for the color to be seen? If so thats not my intention, the cursor will never be on the field I need to change the background color on. The field/cell is disabled, I even tried disabledbackcolor with no luck.
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>Won't .DynamicBackColor do the trick, then?

Not for the active cell, because for the active cell column.DynamicBackColor setting is overriden by textbox's ...Color properties. You need some code to make sure that the appearance of the active cell is what you want it to be. Usually this code goes into grid.AfterRowColChange() event.