One step forward, three steps back ... Once upon a time I could use acroread, foxit, and the like to read PDF with scrolling being smooth. A while back I tried installing the proprietary nvidia driver and every few hours my system would 'freeze', going from its normal load factor of <5 to 25 or more. Its hard to do any monitoring when that happens but it seems that the time was taken with either kwin or kswap0. I don't know why and I don't know why that pushed to load factor up and the responsiveness down. When it worked, the nvidia driver was great. Tke KDE eye candy like cube rotation, was fast and everything danced. But four or more times a day things froze. I un-installed the driver and went back to 'nv' in in xorg config, but I think that the nvidia installation had done other things because now the scrolling, certainly of documents in full screen mode, and that goes for things like LibreOffice as well, is jerky. Of course editing small windows like this one to compose this message which isn't scrolling and just echoing characters, that's OK. Not demanding. Scrolling a pick list, even one like the list of messages in Thunderbird, is OK. Superficially it seems to be a full screen problem. I'm in no hurry to go back to the intermittent freezes but I don't recall this behaviour before I tried the proprietary driver. I'm no X guru; I can get it working but I don't know about tuning. Any hints, even as to running the proprietary drivers without the freezes, would be welcome. LSPCI tells me 00:0d.0 VGA compatible controller: NVIDIA Corporation C61 [GeForce 6100 nForce 405] -- ... it is easy to be blinded to the essential uselessness of them by the sense of achievement you get from getting them to work at all. In other words... their fundamental design flaws are completely hidden by their superficial design flaws. -- The Hitchhiker's Guide to the Galaxy, on the products of the Sirius Cybernetics Corporation. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org