The document screen of the OS is sometimes shifted after a program execution, what's wrong?
Make sure that the program doesn't read then write directly from and to the LCD screen buffer. A buffer allocated with malloc() and copied to the LCD screen buffer with memcpy() should be used instead.
After upgrading YAGARTO (or the GCC toolchain), nspire-ld fails to produce the .elf file
Delete the .o files in the system/ directory of the Ndless SDK and rebuild your program.