can't Debug Digi Connect ME 9210

Hey everyone,

I am using the Digi Connect ME 9210 (with JTAG,ESP for NET+OS 7.4,Development Board)
Everytime i try to debug the sample application from “Getting Started Tutorial” the Debugger stops in root.c at initAppservice(); and write the Error:

Cannot find bounds of current function

(the J-Link GDB does download the program correctly)
after pressing Resume an other Error appears:

################################################
stackdepth 0x002B44B8 0
4
stacklist_lh 0x002B44B8 0 4
0 Line 86 of “…/root.c” starts at address 0xe548 and ends at 0xe54c .
0 0xe548 : bl 0xdca0
0 applicationStart + 12 in section .text
1 Line 1050 of “./common/bsproot.c” starts at address 0xfc924 and ends at 0xfc98c .
1 0xfc924 : sub sp, r11, #16 ; 0x10
1 netosStartup + 768 in section .text
2 Line 105 of “tx_tse.c” starts at address 0x9de9c <_tx_thread_shell_entry+32> and ends at 0x9deac <_tx_thread_shell_entry+48>.
2 0x9de9c <_tx_thread_shell_entry+32>: mrs r2, CPSR
2 _tx_thread_shell_entry + 32 in section .text
3 No line number information available.
3 0x0: ldr pc, [pc, #24] ; 0x20
3 No symbol matches $current.
####################################################

I just started a few days ago, I have no idea what I could change to set back the default application.

Does anyone have an idea,how i can solve this problem?
thanks in advance
Sven