The crashing has been dissected and replicated by users on the forum. We know exactly what's causing it. It's a memory leak. There's also a problem which has to do with Aion not being flagged for PAE (Physical Address Extension) that increases the amount of memory the application can use to 3Gb and there isn't a 64 bit version of Aion. Both of these can be easily fixed, especially since the Korean and Chinese versions don't suffer these problems.