The IDE drivers fixed the problems with shutting down the hard drives prematurely and the burning problem with Nero, but now the system chokes when using defragmenting programs and it gets real choppy under heavy disk use that didn't occur with previous drivers or the ITB drivers (note: this is what happens with my config, so it may not happen on your's).
Wouldn't know about the sound drivers really because frankly I gave up on Nvidia's "oh the drivers are going through WHQL, check back next week" word for several months and got a standalone sound board that just works peachy now.
And finally the last annoying bug I noticed was the ethernet drivers causing a constant stream of 6-7% spikes in CPU usage even at idle. Went back to the previous ethernet drivers and all is well. So basically I'm using a combination of different drivers that folks of the nForcer's HQ forums have conveniently packaged for easy installation.
A well known site for these kinds of remixed drivers is
Mwarhead's page, and he made a cool package that resets the drivers to the original state before any nForce drivers were installed so that you can safely reboot after uninstallation et al, but there is still a certain procedure for using it (it's called nForce Reset), and here is Mwarhead's recommendation:
Run Reset first making sure you click yes to installing SW IDE (its not the actuall SW ide its really the Generic).
Then run driver cleaner.
Pull down to nForce Chipset and hit clean.
*NOTE* If you have not run the reset (and clicked yes to installing the SW ide) or manually replaced the SW ide drivers with Generic Microsoft ide drivers then when you run driver cleaner or the Nvidia Uninstaller upon reboot you will get a blue screen saying unacessible boot device. Please do not restart your computer after running the Nvidia Uninstaller or the Driver cleaner if you havent replaced the SW ide driver. The reason I dont recommend using the Nvidia Uninstaller is that it locks it so that no other nForce set can be installed (except manually) until after reboot and this includes my reset.
SO I HIGHLY RECOMMEND.
1. Mwarhead's nForce Reset
2. Driver Cleaner
3. NORMAL Reboot
4. Install nForce UDP or Remix
5. NORMAL Reboot
6. Reinstall/Uninstall +Install Video Drivers
Overall I am not impressed with the 3.13's, but I didn't expect every little issue to be fixed as Nvidia's driver support is lacking. But you may have a different experience, so just play it safe and set a system restore point if possible and use these driver cleaning utilities. HTH.