Odd problems running Office 2007 in Windows 7 Ultimate

Hello,
I recently upgraded my mother's computer to Windows 7 Ultimate edition, as I was advised that it was not necessary to re-install applications.

This is important as my mother is registered blind and uses specialist screen reading software and magnification, which is a nightmare to install and set up.

Everything works fine, except Microsoft Word 2007, which is very glitchy. For instance, the font is too large (causes problems for her screen reader), the screen seems to 'wave' and flicker a lot, and she is unable to block-out text for cutting & pasting, editing etc. and it seems to freeze on occasions.

She has a powerful, quad-core gaming-type computer (bespoke), 8Gb RAM, 4Gb of video RAM, massive hard disk etc. Every other program works fine, including WordPad (which we used just to check it wasn't word processors in general). Internet Explorer 9 is brilliant and no problems with other applications. It's just Microsoft Office Word that is problematic.

Please do not suggest we use non-Microsoft products as they are incompatible with her specialist software. Thank you for any ideas.

Have you tried a reinstall of JUST the Office software? And all Windows/Office Updates are current?

Yes, I bought it from Software4Students (my mum's an OU student). And I haven't tried re-installing MS Office because I Googled it and discovered a lot of people have reported major problems in re-installing it.

Uninstall it first, then reinstall. I've never had a problem doing it that way. It should reset to default settings.

She uses Supernova Plus, from Dolphin http://www.yourdolphin.com/productdetail.asp?id=1, which greatly magnifies text, without pixilating it, and also reads text to the user.

She also uses Kurzweill 1000 http://www.kurzweiledu.com/kurzwei [...] ndows.html, which can read scanned documents or PDFs, out loud. It can also transfer any text, including PDFs into a user-defined text and background.

Both applications are phenomenally expensive, and take a powerful machine to run, but are invaluable for my mother's independence.

Thank you everyone. We tried a few of these ideas, but they didn't work, so my mother has decided to upgrade to the latest version of Office. We hope that won't cause any problems with Windows 7.