How often should you update your graphics drivers?
They seem to change quite alot , do i really need to keep going back to see if new ones have been released or just go when i actually remember to?

Can not having up to date drivers really make much difference to my system or would i not notice anything?

"If it ain't broke don't fix it" I would say if your not having a problem with the setup you have then don't update the driver. Sure a new driver can add new fetures and fix bugs but it can also introduce new problems. You may want to read up on the new driver release and see what the documentation says.