Hi canon, thank you for posting this bug report. I appreciate the troubles you are having are frustrating for you. With the release of Ubuntu 11.04, Ubuntu Software Centre version 4.0 was also released and addressed quite a few existing bugs, including some relating to speed and stability. If it is an option for you to upgrade to Natty (11.04) and get version 4 of Software Centre, this would be the first suggestion to address your problem.
If this is not an option for you, could you please run Software Centre by typing software-center (no sudo) into a terminal and repeat the activity that causes your problem (i.e. install a program and get an unstable/slow system). Then, paste the output from the terminal back here - hopefully it might contain some information that will help us to address the problem. ** Changed in: software-center (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/808221 Title: Whole computer unstable while installing apps To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-center/+bug/808221/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs