[ubuntu-in] Unable to use backspace key in Ubuntu in vi application.

[Ravi Joshi]

hi..
     i have installed ubuntu 9.04 in my laptop DELL VOSTRO 1510, i want to create a C file (.c file). so i type vi myfilename.c in command prompt. the file named "myfilename.c" opened in the vi application. then i press "i" for input (i want to write #include<stdio.h>. and to type something in the vi appliction we have to first press "i" key). nothing happaned in first time but when i press i second time i is visible in the vi application .then i press backspace to delete that i because i want  to type #include<stdio.h> instead of i .nothing happaned. and one thing also that the right, left, up, down key is also not working. i was suffering from this problem in Ubuntu 8.10 also.
                                           please help me....


      
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