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I upgraded to 12.04.1 from 10.04 recently and am running the Gnome Classic (no effects) desktop. I spent a couple of days tweaking the appearance and behaviour but there are two issues that I can't resolve.

  1. The mouse cursor frequently disappears, especially when scrolling through web pages or hovering over links/icons with tooltips. Moving the mouse brings the pointer back but it vanishes again almost immediately. Note I don't have unclutter or Parallels installed.

  2. The screen no longer fades to black when left idle for too long - it just cuts out. Bad news when watching content online.

EDIT: It's a 2 year-old Acer Aspire One laptop with 2x Intel Atom Z520 processors @ 1.33GHz, 1GB RAM, Intel GMA500 Poulsbo graphics card. I originally installed 10.04 via Wubi and upgraded to 12.04 via Update Manager.

Any tips greatly appreciated. Cheers...

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What are your hardware spec.'s? How much RAM? Have you loaded all recent updates and checked for alternate drivers? –  david6 Sep 1 '12 at 8:31
    
All recent updates have been installed. I will check for alternate drivers though. –  Paul D Sep 1 '12 at 10:48
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