Help needed, can't warmboot new build!

[DLimmer]

Ordered components last week from Newegg and finally got most of them together this evening, however, everytime the computer calls for a reboot/restart, the monitor goes blank and the computer seems to freeze. Powering down manually and restarting fixes the problem.

No components are OC'd yet and Windows is installed correctly and seems to be running normally. Using a single hard drive until stability is assured, then will RAID. Is there a cable or setting that I may need to double check?

Thanks!

Here's the setup:
CPU: Intel Core2 E4300, $169

HSF: Monsoon II TEC $150

Video Card: EVGA 8800GTS 640 MB, $355

Motherboard: EVGA 122-CK-NF68-TR LGA 775 NVIDIA nForce 680i SLI $210

Memory: 2 x GeIL 2GB (2 x 1GB) 240-Pin DDR2 800 (PC2 6400) $330

Sound Card: Creative X-Fi Xtreme Gamer Fatal1ty, $84

Hard Drives: 3 x Seagate Barracuda 7200.10 320GB 7200 RPM SATA 3.0Gb/s $265
(Raid 5)

DVD Burner: LG 18X Black IDE, $31

Case: COOLER MASTER Centurion 5 $50

PSU: CORSAIR Modular 620W Power Supply , $150

Operating System: Vista Ultimate Upgrade $228

Monitor: SCEPTRE x22wg-Gamer Black 22" 5ms DVI Widescreen HDMI LCD $300

Mouse: Logitech G5, $45

Keyboard: reusing old one.