[cannot uninstall v2.72]

I am trying to install the new 3.05 version over the top of v2.72 but get a continuous error and the install fails.

I have also tried uninstalling v2.72 from the Control Panel but get the same error:

I am comfortable editing the registry if that will help ?

[extract cheese from pie chart - magic wand]

where do you turn on antialiasing?

I lowered the tolerance level but it still doesn't select it perfectly.

Also, it only takes the white part of the text and leaves all the black background...eurgh

[extract cheese from pie chart - magic wand]

I'm trying to extract one of the cheeses from the following chart but am finding it impossible.

When I select the yellow area with the magic wand, it also selects the whole grren area.

The lasso is tricky to use.

Any other ideas on how I can approach this?

Thanks