Recently a kitchen drawer began opening on its own about 1/2". It just won't stay completely closed now, but did stay completely closed until about 2 - 3 weeks ago.
Some information -
* I installed the slides as replacements for the originals (but they all worked perfectly for at least 2 years).
* They are not self-closing slides.
* The one drawer which opens spontaneously does have a pots and pans stored but the slides are 100 lb. slides.
* The slide on the drawer is a full extension slide.
What are the most likely causes of and solutions to this problem? I'm obviously looking for a solution which doesn't involve replacing the slides, if possible.