[newbie] nvidia geforce graphics card

[John]

I have just installed nvidia geforce mx 4000 graphics card. 
Installation appeared to go ok using the md10 driver and kernel 
source.I am using the opengl screensavers however and they are now 
moving frame by frame instead of flowing as before. Is 128mb of ram 
not enough or are there other settings to change?  I used the mandrake 
drivers as it was easier for "newbie" me than installing driver from 
nvidia.com. Thanks in advance for help.
John

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