D.D.
J. - I can't help too much with the current problem, just shut the door and open the windows (when the snow stops), but for future painting projects I would suggest you buy low VOC paint. The VOC's (volatile organic compounds) create the smell and they are regulated by the epa (printing companies have to keep records of how many VOC's they are releasing in the air). Home Depot advertizes low VOC paint and I know that Lowes carries some (their staff just isn't aware of it) you just have to read the labels. We painted our living/dining room with low VOC and had no odor at all (sorry I can't remember which brand - but it wasn't any more expensive).
Good luck.