Manage Updates History

Can't remember what I did - duh! but my Aspire One [running Linpus] has lost the History in "Manage Updates"

i.e. Manage Updates will open correctly and reports my machine is up to date, but if I click on History I get
"Internal Error: ...updates list cannot retrieved"

so how can I rebuild the list?

Thanks for any help, Guys

 

I have this problem as well, I think its to do with Installing software have you installed anything thats not from a acer server? just before it stopped.
To remove the software through a different way do this:
open a terminal window by holding Alt+F2 and make sure you have a blank box and tick Run in Terminal
type xfce-setting-show
go to Desktop
Behavior
Tick Show desktop menu on right click
then right click on the desktop
Go down to the System tab
Click Add/Remove Software
And Remove anything necessary

Sorry there isn't an easier way to do this