Quote Originally Posted by lv4dogs
I agree with the others, it probably is a dominance issue.
The first step would be to teach her a "off" or "leave it" command. That will at least let you re-direct her behavior when she does do it.

To help overcome this problem (which will most likely help but may not cure the problem totally) you should start some serious training with her.

Enrolling her into classes will help with not only this but many other things as well. It will help teach you AND her many things like basic commands, some behavioral issues, it will help with socialization and bonding too.

And of course you want to try to avoid anything that may make her think that she is more dominant than you and other family members.
NILIF is a GREAT program to follow in cases like this. Basically what you do is make her obey a command or two for EVERYTHING. Make her sit before you feed her dinner, make her lay down before she goes outside, make her shake paws before you pet her, etc....
Do not allow her on any furniture, especially your bed & try not to pick her up unless needed. She needs to stay height wise, lower than you. Feed her AFTER you eat. etc...

Here's a pretty decent site w/ some info:
http://www.hsus.org/pets/pet_care/ou...nant-Dogs.html

here's another good site with links:
http://www.newhopecattledogs.com/training.htm

Good luck!
Coulden't have said it better. I had this problem with a female mini dachshund I had once. I told her NO in a stern voice and she usually did stop.