Trying to install Muse, which brought up installing Adobe Air problems

Cant uninstall earlier version.   1.1.0.5790

Get this error trying to uninstall:

"An error occurred while uninstalling Adobe AIR.  Uninstallation may not be allowed by your administrator. Please contact your administrator."

Get this error trying to install the latest version of Air:

An error occurred while installing Adobe AIR. Installation may not be allowed by your administrator. Please contact your administrator.

This is my personal computer, I am the Adminstrator.  There are no Guests or other Users.

Here's my log:

[2011-12-07:13:44:52] Runtime Installer begin with version 3.1.0.4880 on Windows XP x86

[2011-12-07:13:44:52] Commandline is:

[2011-12-07:13:44:52] Installed runtime (1.1.0.5790) located at C:\Program Files\Common Files\Adobe AIR

[2011-12-07:13:44:59] Starting runtime update. Updating runtime from version 1.1.0.5790 to version 3.1.0.4880

[2011-12-07:13:44:59] Installing msi at c:\docume~1\sww\locals~1\temp\aire2b.tmp\setup.msi with guid {FE23D063-934D-4829-A0D8-00634CE79B4A}

[2011-12-07:13:45:04] Error occurred during msi install operation; beginning rollback: [ErrorEvent type="error" bubbles=false cancelable=false eventPhase=2 text="1603" errorID=0]

[2011-12-07:13:45:04] Rolling back install of c:\docume~1\sww\locals~1\temp\aire2b.tmp\setup.msi

[2011-12-07:13:45:04] Rollback complete

[2011-12-07:13:45:04] Exiting due to error: [ErrorEvent type="error" bubbles=false cancelable=false eventPhase=2 text="1603" errorID=0]