Maybe u hold the key to long ( its a while ). U could test its out.Try if this solves the problem
Code:
..
 	if(key_cur==1)
 	degis_id = degis_id + 1;
  	if(key_cul==1)
   degis_id = degis_id - 1;
while (key_cur) wait(1);
while (key_cul) wait(1);
..
Does this help ?

Acknex umgibt uns...zwischen Dir, mir, dem Stein dort...
"Hey Griswold ... where u gonna put a tree that big ?"
1998 i married my loved wife ... Sheeva from Mortal Kombat, not Evil-Lyn as might have been expected
rayp.flags |= UNTOUCHABLE;