I bought it from walmat about 2 years ago and now this year it will not work with memory card in. any ideas ?

Try a different card. It's possible it went bad.

Its works any my other camera's

What do you mean by "will not work with memory card in"?
Will it not power on or what?

It will power on but it will not take pictures on the memory card it goes to internal memory. it never says sd card locked. But im waiting on moultrie to email me back

It shouldn't say SD Card Locked either unless you have the notch on the card slid to the locked position.
I think I'd still try a different card. Also try blowing the slot out with canned air. I blow out the slot on my M60 a couple times a year.

When you put the card in its says sd card on the screen.
Then 3 seconds later it disappears. It goes back to using
the internal memory or when it does stay when u got to change
modes it disappears

Try formatting the card.

Martin

how do u format a sd card
I thought camera did it automaticly

I'm not real sure that formatting the card is going to help but here's how to do it.
Put the card in your computer and go to My Computer icon.
Right click the "removeable drive" that is the sd card and select format.