Animations very slow on Ubuntu 12.10 with Radeon HD 6770 (3 monitors)

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http://askubuntu.com – I've installed 12.10 with the proprietary Radeon drivers and am spanning a desktop across three monitors: $ dpkg -l fg* Desired=Unknown/Install/Remove/Purge/Hold | Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend |/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad) ||/ Name Version Architecture Description +++-================-=============-=============-====================================== ii fglrx 2:9.000-0ubun amd64 Video driver for the AMD graphics acce ii fglrx-amdcccle 2:9.000-0ubun amd64 Catalyst Con (HowTos)