If you didn't move the dish very far, then the angles are probably reasonably close. I would guess you are not aligned to true south. I am lucky that my true south satellite is just a couple of clicks away from dead center on the dish. Mark where you are now on the pole and mount, then make a reasonable guess how far from center you need to move the dish to hit your true south satellite. Then loosen the mount to pole bolts, just enough to be able to twist, ever so slightly while watching for any sign of signal. Just be sure to use an active transponder on the satellite in your receiver.
1/2 a degree is a long ways at 22,500 miles above the equator. So, make very small moves.