Pausing target processor: not responding.

hello,

i am currently working on DE2 70 altera kit for my final year project and want to send messages using ethernet port. i am working using SOPC builder. Firstly i want to run a small program(eg. LEDs). i have created a NIOS II system using SOPC builder, then i have used altera monitor program to compile a c program.

system got downloaded on to the board but when i m trying to load it i am getting the following error.

Usingcable "USB-Blaster [USB-0]", device1,instance 0x00

Pausingtargetprocessor: not responding.

Resetting and trying again: FAILED

Leavingtargetprocessorpaused

please kindly help me to sort this error.