Okay too bad why do you use msg_show I know its from the templates but its easy done if you try to write your code alone try this:
Code:

---

write this on the upper of your script
string my_text ="change this to your text";
font simple = "arial",0, 30; 

place this somewhere:
text the_text
{
string = my_text;
font = simple;
pos_x = 10;
pos_y = 10; //now the text is where your panel is

if my_variable == 1
{ 
talk_panel.pos_X = 10;
talk_panel.pos_y = 10;
talk_panel.visible = on;
my_text.visible = on;
waitt(10);
my_text.visible = off;
talk_panel.visible = off;
} 
  

---

I hope this helped you try this code and tell me if it worked