Hello everyone here's the problem, I'm running office 2007 on a windows 7 professional box. I'm in a domain enviroment with about 20 computers. The domain controller is Server 2008 enterprise r2 and has exchange 2007 installed. I have been using outlook fine without any problems till one day I had to send a pdf attachment and outlook just crashes.Restarted outlook and tried it again but still same results. Tried to send other different type of files like word,excel,txt and they all can send fine but soon as I try to send a pdf it just crashes. The pdf file is only 3 mb.Please help! Thanks!