I have a128MB video card. Only 16MB are showing?

Help! I have 128 MB ATI Rage Video card. I am trying to install the Digital Arts and Crafts Studio and it's saying that I don't have enough video memory installed. It needs at least 64MB. The drivers are installed correctly for the 128MB Video Card and when I do the DirectX diagnostics, it is still saying only 16MB. I have tried everything. What do I do?|||that's an old card so it might not be supported by that newer program. Are you sure it is 128mb though b/c I've heard of the 128ATI Rage card and I'm thinking it was only 16mb ram, 128 might just be part of the name...