It might be a directx issue so try downloading and installing directx 9.0c, it can be found here:
Code:
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=2da43d38-db71-4c1b-bc6a-9b6652cd92a3
Windows 7 has dx11 by default and much like Vista with dx10.1 it is not 100% backwards compatible. Everquest requires dx9 runtime components in order for it to work properly. While the Titanium and SoF install packages will install parts of dx9 it is incomplete to say the least.