Hi guys, can anyone help me..?!

I'm using Solidworks 2012 SP2.0 and am experiencing problems with Dimension colours in Drawings. For some reason when I import a model into the drawing sheet, any centre marks on the model appear orange in colour. When i apply dimensions to the model, these also appear orange.

I've tried changing the colour (color - sorry I'm in the UK) settings in the System Options > Colors tab, and the colour settings show up as black for "dimensions, imported (driving)" and sure enough when editing sketches in Part files, the dimensions are black, and not orange.

Is there an additional colour setting I need to identify which will change the dimensions from orange to black, or am I going to need to re-install my software??

Note: I've tried creating new layers, which does nothing.

Any help would be appreciated!