Hi kwl;
Before you get in too deep consider uninstalling the new software and see if everthing is back to normal.
You can also restore to a point before this if you have a restore point.
Granted this may not help with restoring the original drivers but it is worth a shot.
Please answer Wolfeymoles questions, he has a lot of knowledge.
In the future set a restore point manually before installing new software.
Just trying to help;
RandyL