thanks, I think the easiest thing for me (I don't control anything about multiuser) is to create a specific account.

Windows 7 lets me create a standard user account, but how do I give or remove permissions to that account?
I'm very interested in the idea that only certain programs can be used, how do I do that?

Los problemas comunes de compatibilidad que vemos con las DDR, realmente se limitan a los modulos DDR400 o cuando van a funcionar en DualChannel, no creo que tu DDR266 tnga problemas de incompatibilidad con tu placa. Saludos.