GPU SDK examples problem


I have a problem running GPU SDK examples on Tesla M2050. The source code compiles successfully, but some of the CUDA samples fail to run (vectorAddDrv, threadMigration, matrixMulDrv, ptxjit) and produce no output. In addition to this any of the OpenCL examples also fails to run with exception to oclDeviceQuery and oclBandwidth. Failing OpenCL examples freeze after invoking clBuildProgramWithSource().

I appreciate any help with this problem.
Thank you in advance.