You're welcome. The old heatsink is probly good to go if you didn't gouge the CPU/Heatsink contact surface, but you may want to check the base of the heatsink for scratches where you used the screwdriver to pry them apart if the screwdriver got between the CPU and heatsink contact area.. The reason is that the scratches might have raised edges, the raised bit of metal on the heatsink base would prevent the heatsink from sitting flat on the CPU, leading to less than ideal heat transfer.