Asus laptop built-in webcam upside down

I use an Asus laptop. My built-in webcam was working fine until recently. Now it shows upside down. I had recently updated a lot of drivers. So, I rolled back the driver (Control Panel\Device Manager\Imaging devices... and it works properly now.)
I am using Windows Vista.
If you are having a similar problem in Windows XP with a built-in webcam on an Asus laptop, try rolling back the driver.

I found a lot of info relating to this problem on Linux, and the solution there was to re-program something.

Laptops, Firewalls and Windows Update

I recently encountered this issue. Windows Update stopped working properly on an Acer laptop. If I manually ran the update, it would loop at some point and I could not get the updates. I found out that the Generic Host now needed to be completely trusted by the firewall. This was not the case a while ago.

It may have been caused by something in the Zone Alarm firewall due to the major update (although the program settings were not changed), or something in a recent Windows Update itself.

To fix this issue if you are using Zone Alarm: open the program, go to the Program Control, find Generic Host... and make sure it is now allowed in all 4 columns. You should be able to run Windows Update now.