Home Build - Blu-Ray Help

[cybergeo3]

Hello,

I recently built a new box for playing blu-ray discs. Everything is put together and working, but the blu-ray is not working properly. Here's a summary:

GIGABYTE GA-MA78GPM-DS2H AM2+/AM2 AMD 780G HDMI Micro ATX AMD Motherboard
- onboard video ATI Radeon HD 3200 128MB DDR3 SidePort memory
AMD Athlon 64 X2 6000 3.1GHz Socket AM2 89W Dual-Core Processor Model ADV60000DOBOX
LITE-ON Black 4X Blu-ray DVD-ROM SATA Model DH-4O1S-66
1 dimm of 2gb ddr2 kingston valueram (spec'd at 667 but it wouldn't run stable so I manually adjusted down to 500 in bios)
Western Digital Caviar SE16 WD5000AAKS 500GB 7200 RPM SATA 3.0Gb/s Hard Drive
50" Panasonic LCD HDTV 720p connected via hdmi

So I have tried both powerdvd8 ultra and totalmedia theatre. it would play in a choppy manner for about 10 seconds and freeze in both players. I installed anydvd and that doesnt seem to help. Now when I try to play the disc in totalmedia theatre, it won't begin to play.

Is the ram the source of my problem? When I bought all the stuff for the build online, I thought I already had ddr2 ram lying around, didn't and just bought a 2gig dimm at office depot to get the build done. Is there a minimum ram spec required for successful blu-ray playback? is it because I scaled it back to 500 causing a problem?

I have tested the drive and a regular dvd plays fine, no problems. Also, the blu-ray disc I am using to test is a free blu ray I got with a magazine with an episode of Coma starring Michael Madsen, I have not played it in another BD player so can't vouch for it, but I assume it's ok, and I'm waiting to actually buy a blu-ray disc until I confirm this drive will actually work.

I'd be happy to provide other info if it will help diagnose. I really appreciate any help you may be able to provide (because right now i'm sitting on $450.00 of non-working blu-ray