my laptop turns on and says acer you know and it comes to the screen with white writing and asks if i want to start up normally and it asks to fix a the problem and that its recommended i click on the fix the problem and it looks like it wants to load but then it goes to a black screen and i can still see the arrow from the mouse when i move it but it wont do anything else after that. what should i do im in school and thats my only computer someone please help