DSDT breaking sleep?

[mrintegra]

I have a 99% working Optiplex 755 SFF running Snow Leopard 10.6.6 with everything working except for sleep using a retail DVD along with iBoot CD method. Could something in the DSDT be affecting the sleep? I have installed SleepEnabler for 10.6.6 but I return only to a black screen after trying to wake the computer. Would someone please be so kind enough to take a look at my DSDT file and let me know if there is anything that can be modified to correct this issue?

Thank you in advance!

Dell Optiplex 755 Specs:
Intel Q9450 Quad Core
Nvidia Geforce 420 OEM
3GB DDR2 800 PC26400
Toshiba 128GB SSD