I had the same issues here, never a problem with v7.1 or v8.0. Appears only since 8.0.1. So I reinstalled EuControl driver 2.6.0 again (over 2.6.0 !!!) and everything is fine again.
Yes, i mean the numbers on the panel screen. Its not a great issue, because i look on the picture and not on the numbers, but sometimes it will shurely be helpful. Thx.