Stills in video project - how to reduce flickering ?

[pyvo]

In a short video project, I have mostly PAL API type 1 video clips but have created a title sequence based on a .jpg image at 750x576 pixels.

Unfortunately, after rendering the project to API type 1 video file, the title sequence suffers from interlacing ‘jitter’ (moving up and down a row of pixels 25 times a second).
This also happens with .jpg photos that I have inserted from source other than ‘save picture from video clip’.

Could someone please explain what I should do to remove the ‘flickering’ ?

1) should the ‘reduce flicker’ option remove this
a) completely or
b) partially ?

2) should I render the title sequence into a separate .AVI type 1 with ‘frame’ based before including it in the AVI type 1 video project ?

3) is there a means of setting
a) the .jpg image to frame-based rendering and the
b) the rest of the project as field-based ?

4) other ?

Thanks for any help

p.s. PC / soft config:
PIV 1GHz
512Mb DDR
200Gb 7200rpm HDD with 90% free
UMSP 7.0 SP2

[Terry Stetler]

When overlaying still images, image sequences or non-interlaced animations over interlaced footage you should set the images Media Source Options to a Frame Type of "Frame" and check the Flicker Reduction box. This forces MSPro to generate the alternate fields necessary for interlaced video.