When i try to run my application, my system crashes with a blue screen which says BAD_POOL_CALLER and then reboots. I am using a GPIB with the latest drivers but no devices attached at the moment because i am only testing the app. I do have ibonl(n,0) calls at the end of the program....read that this may be the problem. I am running visual basic 6 on windows 2000. any ideas?