I am using Office 2007 Pro Plus on my Windows XP system. The default language which is installed in the Office suite is English. I think this one is a single user pack. I am using Word most of the time. This is a new upgrade that I had performed recently. But when I try to run proofing tools I am getting a error on my screen. Word is not able to find proofing tools for English. It is a fresh installation but still it is not working.