When i was at school i did intro to C and i had the projects saved away. They were done in MS Visual C and works fine in Borland C. Now on linux i installed kdevelop, Anjuta and Eclipse and i get the same error in all three applications. One was the include<conio.h>: conio.h is not a valid file or directory (something like that). The other is with the main function, void main(): main should return an int. When i run the same code in borland i get no such errors. What could be causing this?