|I think Video memory only adds with System memory if it is onboard grahpics.|
Windows XP only recognizes a maximum of 4 GB of memory. However, this INCLUDES the virtual memory used by the pagefile system.
Check your pagefile size - if you add this to the number reported by system properties, it should total your 4 GB.
I'd recommend turning off virtual memory/pagefile system on your system with 4 GB of physical memory:
1. Start the Control Panel System applet (go to Start, Settings, Control Panel, and click System).
2. Select the Advanced tab.
3. Under the Performance section, click Settings.
4. Select the Advanced tab.
5. Under the Virtual Memory section, click Change.
6. Select No Paging File and click Set.
7. Click OK.
Also, keep in mind...When a video game needs more memory, it will use the system RAM via AGP Aperture Size or PCI-E addressing.
Can read http://photography-on-the.net/forum... for more info on this.
But i would recommend keeping all 4gigs.