Attached Link: Feliz Primavera

I recently finished an animated tribute to spring, using Poser 7.  Take a look at the attached link, it's far from flawless but it's summer now so I'm done.

Look for the weird artifacts in the upper left hand corner, when I zoom into the player piano and when I circle the cat at the calliope, and when the balloons start to rise.  What the.........?
I have Poser 7 SR2 on Macintosh OS 10.5.3.  Anyone experience anything similar and know where it comes from?  I have no idea what it is.

I'm a big fan of the group from Spain "La Oreja de Van Gogh" and wanted to use one of their songs in an animation.

The final gazebo scene was something I had done about 6 years ago in another 3D app.  Bonus points if you can tell me what app I used!

Ulysses