Hello to all zBrusher!
Nvidia recentely have relase the last detonator (detonator 5) ver. 40.72!! I have installed this (i have a Geforce 4 Mx440) and my computer have increase the graphic performance!!!
If u want download this click on :
Hope this is helpfull!! 
Hmmm, after downloading, the file just crashes every time I try to run it. Wierd! 
I have had same proble but i have resolved in this way:
Install winzip 8.1;
copy the detonator files into desktop;
Right mouse button on it and extract file with command : extract to folder… “into desktop”; (that it show !!)
Go to into folder and install it !
I hope that is helpfull !!
Thanks! That worked perfectly! 