"donna" <donna@discussions.microsoft.com> wrote:

> Normally with Windows Vista, the windows are supposed to be semi-
> transparent, but for some reason, all of a sudden they aren't transparent
> at
> all. <snip>
> It's like somehow, the settings on my computer were changed, <snip>
> Also, the button on the task bar (or whatever it's called) that says
> "switch
> between windows" doesn't work the same anymore. <snip>

For some reason Windows Aero and the 3D-Flip has been disabled by Windows
itself (Alt-Tab will still let you cycle between programs).

This is usually caused by one of these three: Inadequate hardware,
incompatible software (particularly old games) or piracy (in which case you
should have activation issues as well).

To reenable Aero, open up Control Panel > Appearance and Personalisation >
Personalisation > Theme. Select the Windows Vista theme. This option may not
be available, in which case you have to identify the cause and correct it.

Troubleshoot Windows Aero:
http://windowshelp.microsoft.com/Win...a2fbf1033.mspx

Minimum requirements for running Home Premium and Windows Aero:
http://www.microsoft.com/windows/pro...e/capable.mspx

Charlie42