WinNT 4.0 Terminal Server, Dual PIII 733, 2GB RAM & RAID 5. On a random basis my event viewer fills with EventID2000: The server’s call to a system service failed unexpectedly. I have contacted Microsoft and they recommended updating certain Drivers – No luck! The only course of action I have is to watch the PTE level in Perf Mon to calculate when the system will crash. After rebooting the box the PTE are restored and the countdown to crash begins. Where can I find what is causing the memory leak??