Error generating flash file

Hi. I am trying to use Flash Programmer from Nios II IDE and I got this error:

# Creating .flash file for the project
$SOPC_KIT_NIOS2/bin/elf2flash --flash=U5 --base=0x00000000 --end=0x7fffff --rese
t=0x0 --input=gauce --output=ext_flash.flash --boot=$SOPC_KIT_NIOS2/components/a
ltera_nios2/boot_loader_cfi.srec
21.jul.2005 12:58:10 - (SEVERE) elf2flash: Boot copier overlaps data in flash
21.jul.2005 12:58:10 - (SEVERE) elf2flash: Error generating Flash file, exiting

I believe this do so I can't get my modified application code out into the board. Does anyone have an idea of how to fix this?

On a similar topic: When I try to use Run.. from Nios II IDE I get a Verify Failed messages. It worked ok just before this error. I just modified my code some and then I got the Verify Failed messages. Do these two problems have a connection?

Thanks,

Ole