There are 3 things that work together and balance each other out to make a home sell. They are Price, Promotion, and the Property itself (condition). If you are sure that your home is being promoted well by your agent (i.e. inviting photos that capture and accentuate the best features of the home and maximum exposure on many web sites) then promotion is not likely the problem. The next thing to look at is the home itself. Is it in "style". There are many decorating things that may be beautiful and you may love them; but when marketing a home for sale you need to think of it as a product and you need to stage it to be appealing to the target market that is most likely to be looking for a home like yours. If it is filled with out of fashion decor, it will be very hard to get a buyer interested. This typically would result in showings with no offers; though if the decor is very aparent in the photos, it can kill the showings as well. Finally, the price. Even if the home is being marketed well and shows beautifully, if it is significantly overpriced, it simply will not be shown.
Some additional tips:
You should verify that your agnet has put your home in BOTH GAMLS and FMLS - these are 2 MLS systems that we have in GA. It's important to be in both. Since you seem Internet savvy since you are using this message board, try Googling your property address and see what web sites it is coming up on.
You can call me any time at 678-520-3113 if I can be of further assistance.