I have SL 10.6.2 installed on my Thinkpad X61 (7675), and everything is working properly, with one exception. When waking up from sleep, the USB ports are dead. I think this is related to the dsdt.aml file from sammy's last post. That file fixed sleep properly, and shutdown/restart, but after installing it the USB ports don't wake up. I tried to use instead the dsdt file from NIXin's initial post in this thread, and the USB ports do wake up, but shutdown/restart are broken, and sleep sometimes works sometimes doesn't. Does anyone understand what the differences are between NIXin's and Sammy's dsdt's? I saw that in NIXin's there are a number of entries for USB ports, which don't appear in Sammy's. Thanks.