I have installed latest Ubuntu 64 bit on the hp dc7800 with core 2 duo e6550.
It has 2gb ram. Not a stellar machine, but I'm getting very poor performance.
Windows and applications are slow to open and move.
Checked drivers and it says "no propietary drivers" are installed.
I just flattened and re-installed the 32-bit, as read somewhere that 2Gb is bare minimum for a 64-bit install. 32-bit seems the same symptoms.
What can I do to diagnose and rectify the sluggish performance?