Severe oddatys in power/boot systems

I use a Acer Aspire One D250 Netbook, i am Running Ubuntu 9.10 beta. Whenever I attemp to boot with the power connectioed i get a error of the"-" character blinking half way through booting. however if I boot off the battery it boots fine. Also if i plug the power cable in befor im logged in it goes into stand by. If i let my netbook sit for a long period of time in standby it will not come back out without a hard-reset. furthermore ive disabled the automatic standby time out but it still goes into stanby. any and all bug fixes/ package updates are appreciated.

ProblemType: Package
Architecture: i386
Date: Mon Oct 12 16:36:14 2009
DistroRelease: Ubuntu 9.10
ErrorMessage: error writing to '<standard output>': No such file or directory
Package: libncurses5-dev 5.7+20090803-2ubuntu2
ProcVersionSignature: Ubuntu 2.6.31-12.41-generic
SourcePackage: ncurses
Tags: ubuntu-unr
Title: package libncurses5-dev 5.7+20090803-2ubuntu2 failed to install/upgrade: error writing to '<standard output>': No such file or directory
Uname: Linux 2.6.31-12-generic i686