Good morning! I have a quick question about the CPU usage limitation in the XP 64-bit. I am running a computational demanding software (COSMOSWorks - Finite Element Analysis) and the problem is COSMOSWorks FEA software (64-bit) is only using 25% of the CPU. The computer has 2 Intel Xeon 5140 (dual cores) so in the "Task Manager" it seems like it has 4 CPUs but the FEA "process" is only using 25% and will not go any higher. I have tried setting the Affinity in the Task Manager to CPU 0, CPU 0 & CPU 1, CPU 0 - 1 - 2, and CPU 0-1-2-3. All of the combinations only use 25%. At which point, I installed 32-bit software and I am able to control the CPU usage which goes from 25% for 1 CPU to 100% for 4 CPUs. Would anyone know how to change the CPU utilization for the software? Thank you very much!