Once again, my apologies as I have figured out that the card was not adequately seated in the mini-PCI slot. Pulled it out, re-seated it and voila! Wireless up and running!!
Further to this post, I purchased a Dell wireless 1350 WLAN mini-PCI card and installed it this morning. I followed Philip's instructions to download the Microsoft driver from the catalog, but after installing I'm getting a Code 10 error (this device cannot start). Next I tried the Dell driver here (for XP), but now am getting a Code 35 error (Your computer's system firmware does not include enough information to properly configure and use this device. To use this device, contact your computer manufacturer to obtain a firmware or BIOS update). The BIOS is up to date. Sysinfo reports the following (this does not report the mini-PCI card): Host Name: LATD410OS Name: Microsoft Windows 7 Home Premium OS Version: 6.1.7601 Service Pack 1 Build 7601OS Manufacturer: Microsoft CorporationOS Configuration: Standalone WorkstationOS Build Type: Multiprocessor FreeRegistered Owner: StephanieRegistered Organization: Product ID: Original Install Date: 11/9/2013, 12:27:29 AMSystem Boot Time: 11/23/2013, 11:37:13 AMSystem Manufacturer: Dell Inc.System Model: Latitude D410 System Type: X86-based PCProcessor(s): 1 Processor(s) Installed. [01]: x86 Family 6 Model 13 Stepping 8 GenuineIntel ~1600 MhzBIOS Version: Dell Inc. A05, 9/28/2005Windows Directory: C:\WindowsSystem Directory: C:\Windows\system32Boot Device: \Device\HarddiskVolume1System Locale: en-us;English (United States)Input Locale: en-us;English (United States)Time Zone: (UTC-05:00) Eastern Time (US & Canada)Total Physical Memory: 1,015 MBAvailable Physical Memory: 709 MBVirtual Memory: Max Size: 2,039 MBVirtual Memory: Available: 1,434 MBVirtual Memory: In Use: 605 MBPage File Location(s): C:\pagefile.sysDomain: WORKGROUPLogon Server: \\LATD410 Network Card(s): 1 NIC(s) Installed. [01]: Broadcom NetXtreme 57xx Gigabit Controller Connection Name: Local Area Connection DHCP Enabled: Yes DHCP Server: 192.168.1.1 IP address(es) [01]: 192.168.1.6 [02]: fe80::88c5:13f6:2106:6db4
Lat D410 (Win 7), WLAN 1350 Code 10