cannot install msi

Hi, I am a developer and have recently upgraded my development pc t
vista and Visual Studio 2008. I've got some web projects, that now fai
to install..

Building the web projects is not the problem; I can install the
without a problem on another (XP) pc
However, when I try to install them on this (vista) pc by running th
.msi, it says I do not have sufficient privileges to install. However,
am not prompted for administrator login, and logging in as administrato
and retrying gives the same effect..

another weird thing: when I install it running the setup.exe that ha
been built with it (only in the debug build), it does prompt me for th
admin login, and installs correctly... running the debug msi itself doe
not install correctly.

Has anyone got a clue how to fix this? Is seems to me it is a vist
issue, but could be a build issue aswell (although it works fine on xp

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langendries