To find out if your graphics card is compatible with DirectX 11, visit the Windows 7 Compatibility Center. To learn more about DirectX 11 and check compatibility visit, http://windows.microsoft.com/en-us/windows7/products/fe...
Gamblers in California must be a minimum of 18 years old. If however, alcohol is served there, the age is 21 and beyond. Also check out this site: California Casinos which has a clean interface and pulls information from various sources.
The Gambling age in Pennsylvania looks a bit complex. Depending one what you want to play and where you want to play it, you need to be either 18 or 21. Land-based casinos require gamblers to be 21, but if you're betting on horses at a racino (which also offers casino games) you only need to be 18.