Hi,
I have been running 2.5d for 24 hrs. I have changed to nanopool.org. It dont have any problem.

Nanopool does not report stats for stale shares, but the stales are still there.
I tried switching one of my machines (10 in total) back to v2.4 and at leat over the past hour the stale shares has dropped back to 5 for that rig, down from 31 the hour before that - 2.4 have even found 27% more shares in that timeframe, but too soon to tell if there's anything up with that.