Welcome to the forum.
This is due to a mis-match between your Project Preset, and your source footage. What is the Frame Size of the Project Preset, and what is the Frame Size of the source footage? You will want your Project Preset to match that of the source footage 100%. Scaling is possible, but quality will suffer.
Let us know about the specs. of both the Project and the source footage.
Hi Bill, thanks for the welcome!
The Frame Size of my original Source Footage is 720 X 404
I've set my Project Preset to DV-PAL - Widescreen 48kHZ, which upon inspection, is 720 X 576, so I'm guessing that's what the problem is..?
I've tried going into Custom Settings to change the Frame Size, but the boxes are "greyed out", not allowing me to change them..
Any ideas on how to best move forward? Cheers.
In CS3, one must do a New Project (as of CS4, one can setup a New Sequence, and Copy/Paste), and choose the Desktop Preset, where you can fill in nearly every attribute field to match that source footage. In CS3 and earlier, there was no way to alter a Project, once created - sorry.
Now, you could setup a New Project, as needed, then Import your existing Project into that (Import Project), which will being in your existing Timeline and your Bins. Twirl open those Bins, find your existing Timeline and Dbl-click on that. Ctrl+A (Select All), and Ctrl+C (Copy). Navigate to your New Project's Timeline, check that the CTI (Current Time Indicator) is at 00;00;00;00, Target your Tracks, and hit Ctrl+V (Paste). Check two things: Transitions, as these usually do not Copy/Paste, and also check your Audio, as issues can occur with Copy/Paste. Sometimes, everything is OK, but check closely.
Good luck, and hope that helps,
Hey, thanks for the help Bill.
Not to worry about an existing project, I haven't fully started it yet until I can get these little niggles sorted out lol.
I selected a Desktop Preset, and managed to change the Frame Size to 720 X 404.
It's definitely a step in the right direction, because the footage in the Program Window is now the same size as those in the Source Window. Only problem is, the Program Window now looks too wide for some reason... There are black bars on either side of the footage. So it's the right size now, it just seems that the Program Window itself is too large...