[lubuntu] Abiword + Scrolling

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http://ubuntuforums.org – I can't use the scroll wheel in abiword ver 2.9.2. Evidently this is a well know problem. The advice is to downgrade to abiword ver 2.8.6. Two questions. Will I lose any functionality on downgrading? How can I downgrade? If it matters, I have Lubuntu 12.04 on a pendrive. Tnanks (Hardware)