I experienced the same problem on my Mac Pro with iDVD.
The menu background was completely white after encoding to a disc image, VIDEO_TS folder, and burning a DVD.
I tried:
0. ...creating a new user profile and encoding the iDVD project with the new user account. Same problem. I know the issue is not related to something in my user account or preferences.
1. ...a different MacBook Pro and PowerMac G5, and the same project encoded successfully on those. So I know it is something on the Mac Pro.
2. ...deleting the iDVD app, preferences, all iDVD receipts under /Library/Receipts, all themes under /Library/Application Support/iDVD, all themes under ~homedir/Library/Application Support/iDVD, and then re-installing iDVD from the iLife '08 DVD. After doing all this, I still had the white menu background problem. So I know it's not related to a bad install or preferences.
3. ...different themes from 7.0, 6.0, 5.0, and older. All themes had problems, so I know it's probably not specific to a theme.
4. ...running iDVD on my primary vs. my secondary display on my ATI graphics card. This did not fix the problem, so I know it's not related to running on a primary vs. secondary video port.
5. ...removing my NVIDIA GeForce 7300 GT graphics card that had nothing connected to it so that only my ATI Radeon X1900 graphics card was installed and connected. REMOVING THE SECOND VIDEO CARD RESOLVED THE ISSUE. The problem appears to be related to having two graphics cards installed in my Mac Pro. The moment I re-installed the second graphics card, the issue returned.
I opened a case with Apple, and they have collected more system information from me and will attempt to produce the issue in their labs. Their engineering team is out for the holidays, so I will have to wait a bit longer for a response.
The root cause of this issue (having two video cards installed) is very disappointing to discover. I've had issues with iPhoto, Aperture, Final Cut Pro, Motion, and Color with two video cards and triple head display configurations. It seems that disconnecting displays from the second video card or removing the second video card entirely will resolve any video display issues I've encountered.
I'm beginning to think that Apple no longer regression tests any of their consumer or professional applications with more than one video card installed in their system because they would have discovered these prominent issues in their testing. They only sell three different video cards with their Mac Pro, so it shouldn't be that hard to try a couple different combinations of video cards to see that their apps don't work 100% with two video cards installed.
Lesson learned: Don't invest in more than one video card in your Mac Pro. Apple isn't investing in testing more than one video card, so if you run into issues, then you're on your own.
Message was edited by: tonytang.com