Trying to access my site without index.cfm fails

Hi folks

Today installed CF10 Standard edition on a server that had been using CF7.  Figured it was time to get current.  This server is running Win2003/32bit and IIS 6. 

Anyway, after configuring CF10, if I access a few of my sites using just the URL without "/index.cfm", I get the following IIS error:

Page Cannot be displayed:

HTTP Error 403.1 - Forbidden: Execute access is denied.
Internet Information Services (IIS)

Now, if I include "/index.cfm" all seems to work fine and I can login/navigate my site fine. 

I've confirmed that index.cfm is in my default documents panel in IIS6 and I've even run the remove_ALL_connectors.bat and then reconfigured them and still no luck.  The same ones that worked before, work now.  The ones that didn't, still don't.

Now full disclosure, since I read CF10 could live alongside CF8, CF9, I stopped CF7 but left it installed when I installed 10.  Then after 10 seemed to be working fine, I uninstalled CF7.   So that's when I noticed this issue.  Upon looking at it, I decided to reboot and reconfigure the IIS connectors but that didn't seem to help.

Any ideas?  Thanks.

S