Driver issues after reinstalling Vista

I recently had to install a new hard drive onto my laptop, and subsequently had to reinstall Windows. It starts up just fine now, except for errors I'm getting with several drivers...

Standard VGA Graphics Adapter
Code 10: This device cannot start.

Realtek RTL8101 Family PCI-E Fast Ethernet NIC (NDIS 6.0)
Code 10: This device cannot start.

Network Controller
Code 1: This device is not configured correctly.

SM Bus Controller
Code 28: The drivers for this device is not installed.

Video Controller
Code 28: The drivers for this device is not installed.


Other fun information: My laptop is a Dell Inspiron 1440 and I'm running Vista 32bit.

I've tried uninstalling and reinstalling each driver without success, and I'm not sure where to go from here. Any help you've got would be appreciated. Thanks!

Have you gone to the manufactures web site for the updates?
Going there has helped me in the past.
THW