my comp has problems with shutting down. it seems as though the power button seems to have a problem

Thanks for taking the time to report this bug and helping to make Ubuntu better. Unfortunately we can't fix it, because your description doesn't yet have enough information.
Please include the following additional information, if you have not already done so (please pay attention to lspci's additional options), as required by the Ubuntu Kernel Team:
1. Please include the output of the command 'uname -a' in your next response. It should be one, long line of text which includes the exact kernel version you're running, as well as the CPU architecture.
2. Please run the command 'dmesg > dmesg.log' and attach the resulting file 'dmesg.log' to this bug report.
3. Please run the command 'lspci -vvnn > lspci-vvnn.log' and attach the resulting file 'lspci-vvnn.log' to this bug report.
For your reference, the full description of procedures for kernel-related bug reports is available at http://wiki.ubuntu.com/DebuggingKernelProblems . Thanks in advance!

"Linux vattam-desktop 2.6.15-23-amd64-generic #1 SMP PREEMPT Tue May 23 13:45:47 UTC 2006 x86_64 GNU/Linux"
this is the output of uname -a

the lspci-vvnn.log file is sent as an attachment..

The kernel version you are using seems to be quite old as the latest 2.6.15 version is -50.61. Please update your kernel and let us know how that affects your situation. Thanks in advance.

We are closing this bug report as it lacks the information, described in the previous comments, we need to investigate the problem further. However, please reopen it if you can give us the missing information and feel free to submit bug reports in the future.