mine had that same problem....what I did was I unscrewed the handle part from the rest of the door panel, which can be done by popping out the screw cover inside the handle (at the bottom, where you put your hand, if you follow), then sliding it back a bit and pulling the entire top assembly off. you will need to unplug the connectors for the power locks/windows. there will be a plastic lip behind that, up against the door, for the bottom assembly. I took some self-tapping sheet metal screws and washers and put them through that lip into the door, and when the handle is reassembled they can't be seen. And it's working pretty good. this supports the handle and the door panel. However, if you go this way, be sure that the screws you use are only about an inch long at the MOST, because if you use anything longer you run the risk of screwing them into the window. however, as stated before, you always have the option of going to an automotive graveyard and pulling a door panel off there. if it takes a dead maxima to make another one better, it's worth it. but I don't see too many of these cars in the junkyard because they're all STILL ON THE ROAD.
Hope this helps.
Dan
1989 Nissan Sentra, killed 8/23/01
I think I heard it scream before it crashed and died.

It remains forever in Sentra Heaven.
SHIFT_eternity.