Do you have a "water plus" setting?
My LG front-loader (HE machine) does and it's the only way washed dipes come out clean, though I do end up running 3 cycles - 1 cold/cold quick cycle with Funk Rock & TTO, 1 hot/cold wash cycle with 1 Tbsp detergent (Rockin Green), 1 cold/cold rinse & spin - and all 3 cycles are run using "water plus" which is supposed to increase the amount of water used in the wash cycle.
Good luck! (Diaper laundry is the only laundry I like doing because it doesn't need folding.)
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Liz
DD (3/2010)
"Make mistakes! Get messy!" - Miss Frizzle