I installed Office12 beta on my desktop the other day for the most part everything was working great. I didn’t encounter any glitches or bugs…that is until I opened up Outlook to check my email. The rendering of inbox folder content took a few minutes which at first I didn’t mind, but then every folder (and I have like 10+ subfolders) took the same amount of time to open up if new mail came into one of them (from my message rules). The biggest problem I saw was with Outlook. EVERYTIME I tried to compose a new email/reply/foward I would get a runtime error and Outlook would crash and close. Luckily I do frequent backups of my PST file so I didn’t lose anything but I had to uninstall O12 and then do a custom w/o the Outlook 
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