i got a atmel at91sam7x256-ek and created a programm for it with an older version of KEIL (?, v2.32a). at this condition it run perfectly. today i changed to KEIL v3.33 first, had a lot problems with the rd-interfac (SAM ICE) and finally i changed to KEIL v3.50. now i got no problems with the debuggger anymore (also no errors or warnings) but the programm(for example the led blinking programm, demo tool) doesn't run. nothing happen.