The HP forum is worthless, so I thought I'd give this one a try. I've installed Windows 7 Ultimate x86 on my machine (hp tx2110us). Been able to get pretty much everything working, but the Broadcom WLAN isn't consistent. Sometimes when I reboot it disappears! Can't see it in Device Manager at all, like it's not even connected! When I installed Windows 7 initially it detected the card during setup on first boot and I had no problem connecting to my network. At first I thought it was a conflict as it seemed to happen when I installed other drivers. So I wiped the HD, did a CLEAN install of 7, got it working, installed the Windows Update for Broadcom, rebooted, AND IT DISAPPEARED. So no other drivers have been installed other than stock Windows and IT STILL DISAPPEARED. I rebooted into safe mode with networking to see if maybe it would appear, got nothing. So I rebooted and when I logged in, IT CAME BACK! So I rebooted again without changing ANYTHING, and guess what? NO WIRELESS CARD. Not in the device manager, not listed under Network, not listed under unknown, NOT LISTED. Win 7 just seems to see it whenever it feels like it! Win7 probably detects it about 1 time out of 25 reboots. I've tried installing the suggested HP driver for it, but it has zero effect. How can I troubleshoot a device that doesn't appear in the device manager?!?! Does anyone have a clue? Note: to be sure the card wasn't fried I downgraded to xp and rebooted 20 times. The card worked 20 of 20 times.