Upgraded to 10.6.2 and with the latest SleepEnabler from netkas, everything works except for this problem after waking from sleep: the mouse lags like hell and quite often I get multiple errors saying that a USB device is drawing too much power. Any ideas for a fix?

Mobo: Gigabyte GA31-ES2L
Graphics: 8600 GTS
Kexts: fakesmc, LegacyALC883, NullCPUPowerManagement, OpenHaltRestart, SleepEnabler (10.6.2 version)

I guess you were using the previous version of SleepEnabler with the included disabler of AppleUpstreamUserClient which causes the QuickTime mouse lag with certain nVidia video cards. I don't think there is a latest version of SleepEnabler includes that. So you can run a separate Disabler.kext instead along side SleepEnabler. You can download it from here. http://stellarola.tumblr.com/post/16884492...use-lag-fix-x64

I'm afraid installing that version of Disabler.kext didn't help; my problem isn't with QuickTime and iTunes causing mouse lag, it's waking from sleep that causes it.

See this screenshot for the "USB device drawing too much power" error: http://imgur.com/1jGGB

Does this happen when using a different mouse?

Yes.

Do you know which USB device the OS is reporting as drawing too much power?
Can you plug that device in to a different USB port?

No, I don't know how to check. This never happened before I updated to 10.6.2 yesterday so I'm assuming it's a kext going wrong somewhere, not an actual hardware problem.

I'm having the same problem thinking it is my 8800gts that's causing the problem....

Try more add power to usb.
Please check jumper usbpwr on your motherboards.
check the reference in your motherboard manuals.
maybe helps

Again; I'm 99% sure this is a kext problem because it only started happening once I updated to 10.6.2. Are there any new ideas out there for this?

I don't have the USB power problem but just the mouse lag after awake. I fixed it by removing the nvinject.kext and used efi string.

Hi there.
I never had any kinda problems using my 8600GT with strings. It's much better than injecting at least for me. I did all the updates w/o a single problem. Just once I had mouse lag in 10.5.7 version what was solved when 10.5.8 was out.
It's easy to use strings for nvidia cards. OSX86 Tools have the strings for many nvidia cards and you can add the strings manually if your card is not listed.
Using strings can be a solution.

Cheers.
bb.