I'm having the exact issue this guy is having:
Any one dealt with this before? its odd I add an extra image or br or padding or anything and it makes a huge break (vertical space). Does anyone know how to get this fix.
I tried literally hours trying to figure it out but no luck.
Its 2 Columns-
mostly all nested tables
images have display: block;
After a lot of testing it looks like I finally got it using doctype xhtml and giving it a height definition.