Blu ray drive reads data discs but not blu ray movies

So here is the problem I have
I have an LG BH08LS20 Blu ray drive which I have used for about 4 months to play blu ray movies.
I was running XP x64 with PowerDVD 7.3 which was bundled with the drive.
I then started dual booting with Win 7 RC x86 with the same PowerDVD software and it still worked fine.
Recently I installed Win 7 Ultimate x64 and ever since I have not been able to play blu ray movies.
Now I would normally conclude that the Blu laser is fried but I still have XP x64 and I can play movies in XP.
Just to rule it out I installed Win 7 x86 and it still doesn't read movies.

It reads regular data discs just fine.

I have tried powerDVD 9 Ultra and ArcSoft total Media theater and they dont work either.

Any Ideas/thoughts on what might be causing this issue?

Update the drive's firmware too.

Already updated drives firmware to 2.0 which is the latest.
Have all neccessary codecs throught the Community Codec Pack (CCC)
The version of TMT I used was a trial and it was fully updated.

If it helps any here are the complete specs on my system:

Intel Core 2 Quad Q6600
2 GB DDR2 @ 800Mhz
XFX Motherboard with Nvidia nForce 680i chipset
Onboard Audio
Si3132 based eSATA card
1 Hitachi 320 GB HDD @ 7200rpm
1 Segate 500 GB HDD @ 7200rpm
1 Western Digital 750 GB External HDD @ 7200rpm over eSATA
1 Phillips CD/DVD Drive
1 LG BH08LS20 Blu Ray Burner
Nvidia 8800 GT by EVGA
1 Samsung Syncmaster 20" monitor over DVI @ 1680x1050
1 Samsung Series 6000 LED HDTV over HDMI @ 1920x1080
Logitech G5 Mouse
Logitech G15 Keyboard
Generic HP Printer
Logitech 5.1 Surround sound System

Any thing here raise a red flag?

Actually I just figured it out.

I reinstalled the nForce chipset drivers and everything worked.

I think it had something to do with the nForce SATA controllers.

But there you have it. If you are using a BH08LS20 with Win 7 x64 just reinstall the chipset drivers

And how do I mark it as solved?