Outlook 2011 for Mac _Exchange Mail trouble – no in-box mail.

Using Oulook, Microsoft Office for Mac 2011, unable to get Exchange account mail to show up in "in" box. Sends but does not show"sent". Says it is connected and appears to download, but does not show in in-box.  I do get a message when I Quit - Red stop sign "Microsoft Outlook must be closed because an error occurred. Any unsaved work may be lost." option is to Quit which is what I already asked for. Same problem on BOTH MacBook and MacPro Tower. so not specific to just MacBook machine. Server folks said it is working and don't know what do do at this end.  Mail on the Exchange account comes in on my iPhone, just not computers.  Have tried an assortment of changes to the settings and then back to what it was so that it shows up as 'connected'. I have not made the leap to Office as Cloud yet and am not in any hurry to have monthly charges if I don't have to.  I don't want to try a re-install from my disc without knowing what the consequences would be.  Any ideas? ___   Don't know if it is related. My other mail account is sbcglobal.net and seems to work ok. It frequently gets an error message (via the yellow alert in the bottom right) that ", or "Connection to the server failed or was dropped.", or "[SYS/TEMP] internal server error (#IS6532)" - but ONLY for the sbcglobal.net account and then it will be ok.  Not getting message errors like this for the Exchange mail account.