I have 1080p footage from a GH1 and converted to PAL 16:9 using Remaster. I have FCP7.
The converted footage is 1024x576.

Now no matter what settings I use within a FCP project, I always get the orange or blue render bars.
This is really strange. I have a project with CF as the codec, and I have to re-render when I bring in a 5 second file.

Is that standard behavior for a custom 16:9 1024x576 project in FCP?
I also tried PAL 720x576 with Anamorphic 16:9 ticked in FCP in case that was the issue.

We can only real time accelerate FCP7 with standard HD resolutions, 720p and 1080p. Same issue happens for 2048x1152 shooters. It is better to edit at a higher resolution than your target, so edit at 1080, then export to PAL.