I thought I was doing something wrong in my code. So I created a new project. I dropped a TADVStringGrid on it. Following are settings.
Cols = 3
Rows = 2
Fixed Cols = 2
Fixed Rows = 0
Background.Bitmap Loaded with an image 350 x 197
BackGround.Cells= bcNormal
Background.Display = bdTile
Background.Left = 0
Background.Top = 0;
The image is repeated in a row that does not exist (ie) it appears to create another row. The image also repeats to the right of the last column if the 3 columns dont exactly fit the client width of the grid.
Set to bcFixed, this works fine.