Yes it is a built in wireless card. My computer model is actually a Gateway DS 450X not a 450 XL as I had originally thought. I went to the Gateway website and found a number of drivers. Which of these is the correct driver? Description File Info D00044-001-001.exe - Calexico 2 / Intel PROSet Wireless Network Card Driver Revision: 8.0.12.9000 / 8.0 Supports: Windows XP, Windows 2000 3/2/2006 22,319 KB 9527022_9522927.exe - Integrated IntelĀ® PRO/1000 MT/CT or IntelĀ® PRO/100 VE Network Driver Revision: PRO/1000 - 7.0.36.0; PRO/100 - 7.0.26.0 Supports: Windows XP, Windows 2000 7/13/2004