The kitchen cabinets in my house are 10 years old and are in pretty good shape. However, I've noticed that the cabinets are pulling away from the ceiling and walls that they are installed up against.

I checked the screws and they were indeed slanted downwards (as such: \), so I tried to drill additional screws as reinforcement into the studs. I moved things off the cabinet shelves and have been storing them elsewhere to ease the load. Unfortunately, I don't think it's been working, because the cracks between the walls/ceiling to the cabinets have been getting bigger. When I push the cabinets up, they do move a very little bit, which makes me think that they might actually fall...

Does anyone have an idea to keep the darned thing from falling (other than just replacing them)?