Repair sketch dialog box wont open

So when im trying to repair a sketch the dialog box just doesnt open when I am in sketch mode and click repair sketch.

Why isnt it opening?

This is the box that I want, but when I click the repair sketch command all I get is the magnifying glass and no repair sketch dialog that shows me the number of gaps and allows me to set size tolerance.

Why is this?

Thanks

SolidworksGeneral