Updated my test installation to the 5/07 update. (I tried this from my computer (XP) which also runs our "live" EVO.  Also tried from a WIN98 machine without the other EVO on it. Reinstalled the Pervasive client on the WIN98 machine. Results are the same) Runtime updated when I first logged in. I can open IN-A & IN-B without a problem. Cannot get into SO-A or PO-A. I do not get any error messages. In watching Task Manager, I see that EVO is running until I click on SO-A. Then "Addsum TAS Premier 7i"  appears and EVO immediately goes to "not responding". After a few seconds, Addsum goes to "not responding". After a little longer a second EVO appears, also "not responding" and there they stay. If I end task and reopen, I can get into IN-A again. I don't have to reboot.
 
I thought of trying the 0714 update, but was afraid to make things worse.  
 
Any help will be appreciated.