[Script✓] How to fix the outline of the Dialogue Box where Oak forbids an Item?

[helloeveryone]

My friend is working on a rom hack, and somehow the Dialogue Box where Oak forbids an item is glitched, while the other dialogue boxes in the game look fine, as he put

#define BG_TILE_HV_FLIP(n) (0xC00 + (n))

in his

include/gba/defines.h

file to fix them (thanx shinydragonhunter). However despite this, the dialogue box where Oak forbids an item is still jumbled up... I wonder if the dialogue box is in another C file?

Here's the dialogue box:

 

[helloeveryone]

nevermind, it's fixed now. can an admin delete this thread?