Computation error too often!

I run several projects (such as SETI), and only Einstein@Home gives me the 'computation error', and it's quite often! The tasks got errors are usually very large (>20hrs) so I'm wasting a lot of CPU time, which I can redistribute to other projects where I can get useful results. Please fix it.

My machine:
Processor: 8 GenuineIntel Intel(R) Xeon(R) CPU E5405 @ 2.00GHz [Family 6 Model 23 Stepping 6]
NVIDIA GPU 0: Quadro NVS 290 (driver version 296.88, CUDA version 4.20, compute capability 1.1, 256MB, 182MB available, 44 GFLOPS peak)
NVIDIA GPU 1: Quadro NVS 290 (driver version 296.88, CUDA version 4.20, compute capability 1.1, 256MB, 218MB available, 44 GFLOPS peak)