Hey guys, let's start off with my system specs. Core 2 Duo E6850 (Stock, not overclocked) Dell Vostro 220S Motherboard 2GB Samsung DDR2 800 60GB Hitachi 5400-rpm Notebook Hard Drive 300W Dell Power Supply 2GB MSI Radeon HD 6450 R6450-2GD3H/LP (Overclocked at 725mhz core, 695mhz memory) Windows XP Home Edition Service Pack 3 x86 19" 720P Sanyo LCD HDTV So, now that we're done with that, lets move on to my issue. So I've come across a problem. When I installed Windows XP Home from Windows Vista, I ran into a graphical issue. Bear in mind Windows Vista completely worked and had 720p HD on the TV while playing games. I have a dual monitor setup with the 19" TV set up through HDMI playing games while the 15" 1024x768 monitor allows me to monitor resource usage and computer temperatures. Anyways, while Windows Vista worked perfectly on all games at 720p, the Windows Vista operating system was just simply taking up too many resources. So, I had a Windows XP key laying around, and I installed it. When I finally got all programs, updates, and current drivers installed, i set up the resolutions in the display manager. When I went to that screen, I had to uncheck the box "Hide resolutions that may result in hardware failure." This let me choose 720p on the HDTV. When I launched many different games, rust, gta4, fallout 3, fallout nv, the game settings would only show the max display of 480x720. In Windows Vista, I was able to select all resolutions in the 16:9 aspect ratio, which the HDTV is. This is why I am very irritated with xp. Even Windows 7 and 8 work perfectly, and I only have a key for Vista and XP. Can someone please shed some light on why when trying to play games on Windows XP the correct resolution does not show up? Thanks, tb293009.