You should not be playing this game. Sorry for the news, but your system specs don't even meet the minimum. That's why you have problems.
Minimum Divinity 2 System Requirements:
CPU: 1.8 Ghz Dual Core (XP/Vista)
RAM: 1 Gb (XP)/2 Gb (Vista)
HD: 9 Gb free HD space
Gfx Card: 256 Mb Shader Model 3.0 (Nvidia Geforce 7600-Series/Ati Radeon 1600 or better)
Divinity 2 System Requirements (Recommended) are:
CPU: 2.6 GHz Dual Core (XP/Vista)
RAM: 2 Gb
HDD: 9 Gb free HD space
Gfx Card: 512 Mb Shader Model 3.0 (Nvidia Geforce 8800-Series/Ati Radeon 3800 or better)
Did you tick the optimize for single core option when you started the game? This may help, but not much.
Try everything listed in the first aid post. You might be able to sqeek along, but it ain't gonna be purdy.
