Sadly you are correct.
I am not trying to offend you Ravirules, but the 210 is a REALLY weak card, and adding more memory will not change it a bit.
the 210 only has 16 processing cores (Shaders)
If you have $100 to spend , a good upgrade would be a Gts250 or 9800Gtx, they can be found for under $100 new.
They have 128 processing cores, a major boost over what you have...
Evga Gts 250 , $85
Newegg.com - EVGA 512-P3-1140-TR GeForce GTS 250 512MB 256-bit DDR3 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card
Unless you plan on running above 1600x1200 resolution, 512MB of video memory is plenty...