Well because leaked = probably beta = may fuxor your game = possible need to reinstall. Might not but you're taking a chance if you do use it. Not to mention it may stop you from being able to properly install the real 1.3 patch when it comes out.
My 3DMark Compare Link 14429
Antec sx1040 case with 400 watt power supply
Epox 8RDA+ motherboard
amd xp 2100 (currently @2.21ghz)(170x13)
gf4 ti4400
soundblaster audigy gamer
Samsung 160gb hd @7200 rpm 8mb cache
NEC 2500a DVD Burner
lite on dvd rom 16x
sony floppy drive
1 gig kingston hyper x ddr pc3200
19 inch hitachi flatscreen monitor
logitech cordless keyboard/mouse(optical)
All running on win2kpro