Low Memory warning: The computer lies?

[javaguy78]

I have windows 7 64 home premium installed on the following computer:

Intel i5 2500K (3.30Ghz, 4core, 6MB cache)
Asus P4H67
8 GB Ram
2TB Hard drive

and when running a specific application (that task manager says is only using about 500 MB), Windows gives me a Low Memory warning, even though taskman says there is about 4000MB free memory. Does anyone know what would be causing windows to think it has low memory when, in fact, it has more than half of its physical memory empty.

More info? I have a 25GB Swap file configured and over 300GB free on my main hard drive. The app that is working when Windows complains is Sony Vegas 9, and the warning message shows up both in Vegas as well as explorer.

I have tested the ram and it is all working, and I can fill it right up by starting a beefy instance of bukkit, so I know the meter successfully registers up to the full 8GB ram, but when the error happens, it's somewhere between 3 and 3.8 GB used.

 

[LiquidSnak]

Could you post a screenshot of the window when it occurs?

 

[carwiz]

Run Task Manager and click on the Performance tab.
At the bottom, click on the Resource Monitor button.
On the Resource Monitor window, click on the Memory tab.

Take a snip of the bar graph area and post it here.

Forgot to mention: The bar graph should show under "Physical Memory". If all it shows is the title bar, click on the arrow on the right of the physical memory title bar to expand it.