Blank emails in outlook 2007 Help!!

Hi. My6 apologies if this has been addressed elsewhere, I couldn’t find it.

I have recently upgraded from Office 2003 professional to 2007 enterprise. For the most part things work fine, however I am having real problems with outlook.

Installed on xp sp2 machine. All recieved emails are blank. I have diabled all add ins, disabled AV and other security, but nothing makes a difference. I had backed up .pst file, so loaded system on laptop (vista machine) imported .pst into that and all was fine there. Reinstalled on XP (desktop PC, copied new .pst across and could read emails. Next time I switch the machine on however, same thing happens, all completely blank.

Any thoughts, ideas please?

Yhank you