When using
For #Findindex 1 #Findcnt
{
}Always make sure that there are items before doing it. 
if #Findcnt > 0 
{
For #Findindex 1 #findcnt
{
}
}This is the Reason 
For %Number 1 0 
{
Display This is the Reason 
}
Halt
Everyone is different, but usually I use  
Exevent Drag 
wait 15 
Exevent Dropc 
wait 15 
This usually gets me some Stability when moving things. People will fight it all day long, its slower, but when you lag you don't usually get the ghost images.