Use NiosII/e or NiosII/s,system is normal.But use NiosII/f,system is not normal.

I use DE0 development board,and quartrsII 8.1 ,NiosII8.1.The system includes the following components:

NiosII,onchip_memory(ram),sdram,pll(Generate pll_sdram),lcd240128(Custom Interface,set up:20ns,read wait:20ns,write wait:20ns, hold:20ns, slave addressing: native);

Reset Vector:sdram , Exception Vector:sdram ;

In NiosII IDE system library properties :program memory:sdram,read-only data memory:sdram,read/write data memory:sdram,heap memory:sdram, stack memory:sdram,

The problem is:When I use NiosII/e or NiosII/s ,the system is normal,and the lcd248120 Normal display.But when I replace NiosII/e or NiosII/s with NiosII/f ,the system is not normal,and the lcd248120 can't displayed right.

Why？How to resolve?

Thanks!