I agree with Amigadave, check out BoingBag 3 ... Not sure if FBlit is in BB#3, but check that out as well... you may need to adjust the default config. in FBlit a bit, FYI.....
Also, give us your full Amiga specs. .... it might help us answer better. OS version, programs running, etc....
file
type for the backgrounds?.... As Piru said the format doesn't matter, what could help tho', is if you can reduce the colors/resolution of your backdrops, using e.g. ImageFX. (which does a very nice job, IMHO)
Tried to do a little test, no 1024x768 mode that I could see on my A1200T, so I tried 1432x556 laced w/256 colors, no backdrop ... TaDa! 885K of precious chip RAM left.....
Man, why couldn't they have enabled the 8MB Chip RAM jumper on the 4000?
