Cannot remove IE 7 Beta 2

I have tried to remove IE 7 Beta 2 so that I could install IE 7 Beta 3
and I keep getting the message:

Windows Internet Explorer 7 Beta 2 cannot be uninstalled from this
user account. Please log on to the same user account from which it was
installed and try again.

Unfortunately, there is only one account on this machine, and it is
mine, which is also the 'administrator' account. I cannot switch to
another user since there is none.

This is also not covered by anything I've found on the Microsoft
Support Site

HELP!!!! How do I get IE 7 Beta 2 off the machine?????

RsH
================================================== =====
<rsh@idirect.com>
Copyright retained. My opinions - no one else's...
If this is illegal where you are, do not read it!