RPGVXAce Editor has stopped working

Well one day I went to open VX Ace and it would not start, all it gave was an error message saying what it says in the title (RPGVXAce Editor has stopped working. Windows can check online for a solution to this problem, etc. etc.). I restarted the computer multiple times, uninstalled RPGVXAce and the RTP and reinstalled both. It still does not work. This makes the program completely useless right now so I'm kinda like... o_o

Does anyone know what's up and how to fix this?

RPG Maker VX Ace: How to implement custom graphics of basically every kind?

Hey everyone, for my game I want to make a complete set of custom graphics, as in, not using the built-in ones at all. So basically I was wondering if there is a page for VX Ace that lists the size requirements and any other necessary info for making and installing:

-face graphics
-item icons
-character sprites
-enemy battle portraits
-battle backgrounds

Also would it cause problems if I tried to use sprites that are taller than the standard ones? I want the characters to have slightly more realistic proportions, like this: (Megaman Battle Network series)
Pages: 1