I have an older laptop, a Dell D400, and prefer to use Vista but the problem is that EIST (SpeedStep) doesn't work for some reason. It's a 1.8GHz Pentium M and it works fine under Windows XP SP2 or any Linux distro (FC8 or PCLinuxOS). I've looked around, obviously there's nothing from Dell's website with any driver that I can use and I don't see any Vista drivers from Intel for this chipset. I've seen alternatives to get it working, 3rd party software and such. Anyone else with this problem at all? Thanks in advance for any help.