Under Counter Water Filter Leaking after Use...

Question

We have a GE Reverse Osmosis system under the kitchen sink - altho I do not see a catagory offered for this on this site.Sometimes, after you draw water from the spicket - several minutes later, you hear water dripping off the counter onto the floor!What causes this? Is it some sort of pressure thing? Doesn't seem to do it when not in use ---- just sometimes after drawing water from the spicket.Here's a photo:http://www.absolutehome.com/web/catalog/product_detail.aspx?pid=94029&cm_ven=Froogle&cm_cat=Kitchen&cm_pla=GE&cm_ite=GE-Water%20Filtration-94029&cid=F45B6277855E117740444574D90DE794