Windows 7 - Windows 7 SP1 problem? - Yellow Triangle in Tray

Saturday, I updated to the Windows 7 SP1. Soon after, I started having this problem with a yellow triangle in the tray icon where the interenet access indicator is that says "no internet access". This is a bogus message, but its still annoying.

This went away if you reboot, and then later maybe that same day the traiangle would reappear. Each time I did still have internet access.

I tried several other things like getting rid of IE 9 which I updated to during the same day and maybe a couple of other updates around this time.
Last night (Thur) was to get rid of the SP1 after several failed attempts. I had to do so by using the cmd WUSA etc instead of through the control panel, because it kept getting stuck trying to do the uninstall through the control panel uninstall method.

This morning, it did not yet have the yellow triangle, and I will check it again this afternoon after work to make sure it has not come back again.

Has anyone had a suspicion of this type of problem, or better yet, do you have any ideas why SP1 would cause such a situation?

Thanks,

This is probably a hardware driver issue with your particular wifi/nic/whatever. Fill out your system specs so we can see what hardware and software you have installed. (Don't just post your specs in your next reply, fill out the "my system specs" portion of your profile.)

ok, I put the specs I could easily find, checked for linksys wrt 610 driver, nothing newer than what I have, same thing on nic card driver... System is over two years old now so the vendors may not update the parts further

After uninstalling windows 7 sp1, there is no longer a yellow triangle present