I have midlet in MIDP1.0 that uses my analog of Sprite MIDP2.0 (by own drawRegion by setClip...) and it's work with JPG images correctly.
When I create MIDP2.0 aplication, my sprites stay invisible.
I replace my Sprite class by default MIDP2.0 Sprite class, and sprites invisible too.
All it i test on Series 60 emulator. On real MIDP2.0 devices it's will be to?
What devices NOT support JPG?