MetTrader 4 Freezing/Crashing when changing accounts

 
In the last month or so I have noticed that when I change accounts, especially from Live to Demo, MT4 freezes and crashes.  This was not happening before.  I have spoken with OspreyFX and they said nothing has changed that it is a MT problem.  Anyone have similar issues or know what I can do?   I've noticed some other issues too, such as buttons not being available to click, indicators not refreshing, etc.  All within the last month, maybe 90 days.  I've had my PC checked out and it's fine.