I type it in all caps because I can't understand why it happen and sometimes I can't see my words when they're all lower cased.

I don't know, but the sqsa in VGC isn't the right place to ask. In Orange Islands or Wifi is a better bet. Also, when you do, don't use all caps and try to compose it more comprehensibly.

Vader told me to use the simple questions thread. Why is my leafgreen game deleting itself when I try to battle with it on Pokemon XD?