Digital BW, The Print

I don't know about the dual monitor problem but a single Geforce 7800 
GTX should be more than adequate for running photoshop which is a 2D 
program. The bottle neck for the radial blur is CPU rather than graphics 
card. That is why you find no difference in speed whether SLI is enabled 
or not. The SLI set up is really only for speeding up intensive 3D 
graphics such as CAD & games.

Howard

john794552 wrote:
> Hope this problem is within the remit of this forum. Please point me 
> elsewhere if not!
> Just taken delivery of a new computer. I have opted for two graphics 
> cards(256 Mb Nvidia Geforce 7800 GTX) linked with SLI for hoped for 
> improvement in handling large 16 bit files in Photoshop, along with 
> the 2 Gig of RAM operating in Windows XP Home.
> The problem I have discovered is that enabling the SLI facility 
> disables the dual monitor display, leaving only the primary monitor 
> showing anything on screen.I use the second monitor to view Photoshop 
> tools and dialog boxes.Disabling SLI restores both monitors. I would 
> like to have both if possible! Is there a workaround. Both monitors 
> are plugged into one of the graphics cards.
> Out of interest, I have timed applying radial blur to a 100 Mb colour 
> file, and it takes about 34 secs with SLI both enabled and disabled.
> If SLI is disabled, am I only working with one graphics card?
> Many thanks
> John Fontana
> 
>