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Computation Error With Optimized Apps

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Quasar8000:
Hey everyone, I've been using BOINC to crunch for SETI for quite a long time. I found this site a couple of days ago and absolutely loved the idea (I didn't love the credits and computation time I wasted though ;)) I currently have 3 PCs running BOINC. one has Windows 7 x64 which I'm assuming there's no optimized app for yet, and the other two have 32-bit Linux. I downloaded optimized apps for these two systems. One of the systems is working without problems (so far), but the other keeps giving me a computation error a couple of seconds after I start every SETI task. The PC has an Athlon 64 3000+ with SSE2 capabilities. I downloaded the latest 32-bit SSE2 apps (r112) and followed the instructions that were attached with the files. I'm only using BOINC so I guess I'm only crunching Astropulse WUs, and I tried 3 of them, all of which gave me the same error 6-7 seconds after starting the task. Any ideas on what could be causing this?

sunu:
Can you give us a link to your systems?

Quasar8000:
This is the PC that's been giving me the computation errors:

http://setiathome.berkeley.edu/show_host_detail.php?hostid=4681290

And this is the one that's working OK:

http://setiathome.berkeley.edu/show_host_detail.php?hostid=4642793

Raistmer:
What SSE level your CPU supports?

Quasar8000:
SSE2. I double checked it using "cat /proc/cpuinfo" and CPU-Z (I have Windows XP installed on the PC too but I don't usually use it).

Sorry I forgot to add that I'm using BOINC 6.4.5 in case it makes any difference.

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