install USB2 EHCI USB and now mouse+keyboard freeze

[newMac]

please help: after installing Intel USB2 EHCI USBDriver my usb mouse and keyboard does not work (freeze). AppleUSBEHCI.kext, AppleUSBOHCI.kext, AppleUSBUHCI.kext, these are the kexts that are inside USB2 EHCI Controller. Anyway to remove so i don't need to reinstall OSx again?

The reason i install Intel USB2 EHCI USBDriver was because when i insert a thumb drive, i do not see it anywhere in my computer. I try insert to different usb port and none see my thumb drive. Yes my usb mouse and usb keyboard do work. I thought install Intel USB2 EHCI USBDriver will fix my usb port to see the thumb drive but then it cause my usb mouse and keyboard to freeze.

Please help


===========================
Snow Leopard 10.6.3 Retail Dvd
Using EmpireEFI and MultiBeast
Currently on v 10.6.5
Intel DG45ID
Intel Core 2 Quad Q6600 @2.40GHz
8Gb DDR-2 PC-6400
ATI 4350
1Tb WD Sata
DvdWriter Sata