Here is the specifics.... after downgrade vista to xp on Gateway ML6721 over the weekend....
Windows XP drivers for Gateway laptop ML6721
Downgrade from Windows Vista to XP
Installation:
1. Download all necessary files below, especially SATA driver.
2. Create Installation Windows XP CD with SATA driver integrated to the your installation XP CD. How? Use free nLite software (
http://www.nliteos.com/) to slipstreaming SATA drivers. You will only need to slipstream drivers under "F6 Floppy x86" driver on SATA directory.
3. Boot from CD and install XP. If you don't do step 2 then your HDD won't be recognized. Original Windows XP installation CD doesn't have the necessary driver to recognize your harddisk.
4. Install all drivers below.
For Gateway Part No. below, go to Gateway site and use search to download the drivers or use Google.
Audio
IDT/SigmaTel Audio Driver
Gateway Part No.: IDT_Audiov5939
Modem
Agere System Modem
Gateway Part No.: D00751-001-001
Motherboard
Intel Chipset driver
Gateway Part No.: D20126-001-002
Network Ethernet
Realtek rtl8103
Use Google or Gateway Part No.: Lan_PCIE_Install_5722_0417
Touchpad
Synaptics Touchpad Driver
Gateway Part No.: D20112-001-001
Video
Mobile Intel (R) 965 Express Chipset Family
Gateway Part No.: D00755-001-001
Wireless Ethernet
Realtek RTL8187B Wireless 802.11g
Use Google
Sata
Intel(r) SATA/Mass Storage Controller
Gateway Part No.: D20109-001-001