Something weird here on an old non active system, its lying next to me in parts with a northbridge chip looking like lava flow on a gigabyte mainbord which was considered by gigabyte not being defective.

The stats shows :

5 Dual Core AMD Opteron(tm) Processor 175 1(2) Microsoft Windows XP 19,886 0 0 -2,291 12 - Gedetailleerde statistiekenInhaal stats

I see the previous month had a negative also making it loose about 3300 points in 2 months

I wonder how that can be possible since it has not been active for a long time

Could it be credit from retired projects?

http://boincstats.com/forum/forum_thread.php?id=4241#55021

Sadly i can't see if thats the case, this is the system where i saw the loss :
Opteron 175
On one point i see a loss of about 1000 points and the second point is last month
The projects named on the that thread i did not participate in at all, the only project i know which got inactive which i did is rieselsieve the rest are still active or have reported to have crashed lately or have problems (MW@Home, Einstein, CPDN Seasonal, BBC Project)

So the change i have something missing should be very small

Just checked, it's from retired projects.

Ah ok
Seems i have to stick by some oldie projects to keep the credits and not take a risk by loosing every time points by new ones which disappear.