I've written a small variation on the blinky program using Keil uVision, I can upload the program to the device and confirm it works as I expected.
If i try to debug my program however the debugger closes immidiately after starting up, I use identical settings for programming and debugging:
Stellaris USB ICDI, JTAG, 1MHz, SYSRESETREQ, page-erase, program and verify
Any ideas how to fix this?