Hi Tome,
I have had some issues with the IDATA stack and XDATA stack overflows as well. In all my reading on the forum and the web and debugging, making sure the debug connection is well made on the pins is really important so you may want to check that. Since you don't have any functions called or anything in main(), are you just trying to see if you can get any program loaded on your CC1110? I would suggest going through the basic software examples in swrc117 if you are new to this SOC. Your target settings in General Options looks fine and the stack/heap size would not be the issue either.
JD