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[ubuntu] Ubuntu 9.04 Freezes

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http://ubuntuforums.org – Appologies for cross-posting (http://ubuntuforums.org/showthread.php?t=1288231) - thought this forum may be more relevant; Just made the switch from XP to Ubuntu but I'm having a few issues. I'll try and be a clear as possible but I am new to Linux so appologies in advance if I'm missing something obvious, I have been searching the forums and trying to fix this myself. Initially I did a clean install of 9.04 and can boot to the desktop but after a minute or two the GUI locked up. I did some searching around and found that adding this to grub's boot options helped as the problem may lie with the wrong tasks being sent to the wrong core in a multi-core cpu; Code: noapic nolapic pci=noacpi The problem with this is that I only get one core of my cpu working so I took out all but; Code: pci=noacpi The system now boots and works for a seemingly random period of time, although launching synaptic, add/remove... or apt from the command line results in an instant freeze. Here is /var/log/dmesg with only pci=noacpi in the boot options; http://www.sendspace.com/file/wgx3mu And here it is with all three options; http://www.sendspace.com/file/tn19rk Hope sendspace is okay, let me know if I should use something else. The only other things I've done since installation is to add VLC and install some drivers to OSS working with my X-Fi card. I'd really like to be able to use both cores of my cpu. Thanks in advance for any help. Hardware specs for info; Shuttle SD32G5 with 2Gb of RAM, Intel [email protected], Nvidia 7600GT and Creative X-Fi (Hardware)