Dear Kaoru
Just to update you and any others who are suffering the same issue, I would like to post how I resolved the error.
It involves changing the registry. Instructions are as follows:
Open Regedit.exe and navigate to
key:
HKEY_CLASSES_ROOT\MIME\Database\Content
Type\text/xml
Change the value for the CLSID
member to be {807583E6-5146-11D5-A672-00B0D022E945}
The above class ID is for
Internet Explorer to open XML's in InfoPath.