Running 2 MT4 Platforms on Windows 8.1

 

Hi

I have bought a new computer with Windows 8.1. When I try and run 2 MT4 platforms together, different brokers and different folder on computer one will hang. They run fine separately but if you log into the other then the one that was running hangs. Never had a problem with my old Windows 7 M/C.

Ha anyone had this and any ideas?