You can try rolling back the drivers for the graphics card, but the Magic Jack is what is screwing it up. I've never used it, so I have no troubleshooting recommendations (besides removing it, which is the first thing I would try).
The new drivers would probably work if you took out the Magic Jack. Try that first. If the new drivers still don't work after removing the Magic Jack, try rolling back the drivers.
If that doesn't work either, we'll go from there.