I'm experiencing a graphical error in which I am able to see through objects as long as there is another object behind them.  I am fairly certain that this isn't a hardware issue, but I've been wrong before.  Does anyone know how to prevent this?

example: http://i247.photobucket.com/albums/gg123/SightTDW/Untitled.jpg

My specs:

Radeon X1950 Pro
Intel Dual Core 2.6 Ghz
2Gb DDR2 800Mhz

I would think that would be sufficient, if more detail is needed let me know.

Do you have any video settings tweaked in your ATi Control Center?

Well the problem is you need to let Legions decide, don't have everything on high just because your card can run it, Legions doesn't seem to act well, or it doesn't for me, just let Legions decide your settings, and if that's not it than try looking it up in the knowledge base it could be quite helpful, that link is.. http://support.instantaction.com/

I don't have anything tweaked in the Control Center, and I haven't attempted to alter any of Legion's settings.

Set anti-aliasing to auto or "let the program decide" in catalyst control center.

I'm not entirely sure what I did, but it seems to be working now.  Much thanks.

Glad to hear!

I had this issue with my geforce 6800gt too. but i solved it.
just changed aa in the driver to "let the program decide", restart my firefox 3 and it runs without any
graphic errors. thank you for the hint ^^

Is it some multisampled render target issue?