ommigosh
don't panic
It's worth having a look at this comet just now. Should be visible to the naked eye but its best best viewed with binoculars or a small telescope. Comet Machholz will be quite visible throughout January 2005. Just now (5th January) it is a couple of finger widths below the Pleiades and Orion's belt seems to points roughly at it (going from left to right). It appears as quite a large smudge in my binoculars. Have a look.