Have you tried running the Dell Diagnostic Utility, what does the report say from it?
Are all of your drivers for both the computer and new video card up to date?
Did you in fact replace the power supply, or leave in the (default)250 watt?
Hi there guys today i bought nvidia geforce 8400 gs pci graphics card for my dell dimension 2400. Well i decided to install my old halo game and it installs without a hitch now when i start it up ill get the halo logo then the window will open but then it goes away and my desktop comes back up minus the wall paper. I thought it was my power supply because the card had a min requirement of 300w and mine was a 250w as it turns out that didn't work. And keep in mind that the halo game worked with the integrated video card in the dell just fine but the graphics were terrible. O and im not sure if this is related or not but when i try to start up gears of war i get this message"C:\ProgramFiles\microsoft games\binaries\wargame-g4wlive.exe:You cannot run the game with modified executable code. please reinstall the game".
What is causing this?
here are some of my comps specs
Dell Dimension 2400
windows xp sp3
intel Pentium 4 processor
nvidia geforce 8400 gs pci graphics card (card in question)
If there is any thing else you need to know just tell me.