Dell inspiron drivers

Hi,

I recently purchased a Dell inspiron 14R laptop. It has come with Windows 7 home edition and Microsoft office 2007. For the first one month the laptop worked fine. but after that it stopped updating my driver information and it comes with this message saying drivers not properly loaded. Initially the laptop came with all the drivers loaded. I tried the Dell online help but could not find any suitable answer to my problem.  Can anyone help me on this.