When I'm gonna write my program stops and appears a box that says Run time error and close my program. What is that, what I coul do?
Maybe, (the usual cuplrit --- A corrupted Workspace).
Hold the F8 Key while the program starts to reset to defaults.
Also, if that doesn't work, you can try a repair of the Program Via the Control Panel.
What, I would like to rule out is a corrupted font but that's a whole otehr story.