So this isn't a pure Excel question, but I hope someone might have some ideas.

About a week ago, IT installed a copy of Office 2003 on my machine as I needed to run a program that someone had created in Excel 2003. Since then it's been steadily trying to take over. I beat back most of the attack by right-clicking on Excel files and asking it to always open that file type with Excel 2007. So far so good.

However, the one thing I haven't been able to fix yet is the "Export to Excel" feature in Outlook. I have a large amount of Infopath forms arrive in my Outlook every week which I mass-export to Excel where I then deal with them. Since installing Office 2003 they stubbornly refuse to export to Excel 2007 and I can't find any way of working around it. The data exported has some compatability issues with Excel 2003 so I really need it to go back to exporting with Excel 2007. There don't seem to be any options in Outlook to specify which version of Excel to export to.

So far I have tried "repairing" Microsoft Office 2007 in Control Panel -> Programs and Features, and running "C:\Program Files\Microsoft Office\office12\excel.exe" /regserver [etc] and when all else failed, going and looking pathetic at the IT department. None of these things have made a bit of difference and IT have washed their hands of me. Anyone got any ideas as to what else I could try?

Any help would be greatly appreciated