Redboot restart every time

Every time i try to load program (I try only eCos based), RedBoot is restart.

(Can it be a problem with tftp server (What tftp server do you use)?)

I also doesn't have baudrate command (In the nios2configtool "Allow RedBoot to adjust the baud rate on the serial console" option is marked with V on gray background. What it is mean).

Maybe the problem with redboot compilation?

I stuck with this redboot problem more than week.

Can someone help me?

RedBoot> load hello
Using default protocol (TFTP)
<Bad format string: 1021B9C : 13 E000 1021DE0 1FFFB44 2 1022570 1021BEC 1>
... waiting for BOOTP information
Ethernet eth: MAC address 00:07:ed:0b:0a:2d
Can&#39;t get BOOTP info for device!
RedBoot(tm) bootstrap and debug environment 
Non-certified release, version UNKNOWN - built 18:47:39, Nov  9 2006
Copyright (C) 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.
RAM: 0x01000020-0x02000000,  available
FLASH: 0x80000000 - 0x80800000, 128 blocks of 0x00010000 bytes each.
RedBoot> ip_address -l 192.168.1.44 -h 192.168.1.1
IP: 192.168.1.44/255.255.255.0, Gateway: 0.0.0.0
Default server: 192.168.1.1
RedBoot> load simple-alarm
Using default protocol (TFTP)
?>
... waiting for BOOTP information
Ethernet eth: MAC address 00:07:ed:0b:0a:2d
Can&#39;t get BOOTP info for device!
RedBoot(tm) bootstrap and debug environment 
Non-certified release, version UNKNOWN - built 18:47:39, Nov  9 2006
Copyright (C) 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.
RAM: 0x01000020-0x02000000,  available
FLASH: 0x80000000 - 0x80800000, 128 blocks of 0x00010000 bytes each.
RedBoot>