Vray Exception please help me

sir
i am using 3ds max2010 64 bit ,vray sp4 . when i render using multiscatter plugin vray shows an error exception,
saying that "preparing instance last mark is at .\src\ vrayrenderer.cpp, line 2256: preparing camera sampler" ( exception box is attached). but if i remove multiscatter rendering is ok.
same error shows with vray scatter also

my sys. config.
[intel core i5 760 processor
intel dp55 wg board
4gb ddr3
ati 4670 graphics card]

But the same project works perfectly in another system with config.
[AMD thlone X2
asuse M2NE board
4gb ddr2
Nvidia Quadro FX 570 graphics card]

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-moving

possibility that the number of your polygon count using multiscatter already hits the limits of ram, try to use external reference or vrayproxies.

thanks hernandoloto
but sir the same project rendered in one of my friend's AMD mechien without any problem
config of that mechien added in my first quote
"is there any hardware or OS problem"
please give me a solution