I also have a similar issue after installing Zephy's 10.5.2 on the following system:

-MSI RX2600XT T2D512EZ/D3 (DDR3 512MB) - Radeon HD 2600 XT
-Asus M2N32-SLI Deluxe
-AMD Athlon 64 X2 6000+

installed LeoGraphicsUpdate 1.0 and only added the newest Natit.kext (netkas.org) and the newest ToH 9.2.0 kernel with fixed shutdown (NO SPEEDSTEP)

After booting (normal or -x (Safe Boot)) i see a blue screen with mouse pointer. When i press the power-off/on button I can see my desktop for 1 second and it switches to suspend. And after pressing power the second time it comes back to normal mode and everything (QE/CI/resolution / Card Information) is fine.

Can somebody help please?