Every time I work on my mod using the Creation Kit It randomly becomes unresponsive when using the render window to edit/create locations. The unresponsive freezes happen randomly when dragging and dropping actors/statics or whatever into the render window. I have left it for about half an hour to see if it would respond again, but alas it does not. Does anyone know how to prevent this. I have just got so sick of it now to the point where I've just abandoned the big mod I've been working on for a few months. Literally just can't be arsed with it anymore.

my specs are:

CPU: Intel Dual Core 2.4 Ghz

Ram: DDR2 4GB

Graphics Card: HD Radeon 4650 HD: 1 GB VRAM