Hi Elizabeth,
On my system I have installed SAP GUI 730 Patch level 7. You are on Patch level 2. I would really advise to bring the patch level up-to-date.
Furthermore, the problem can also be a constellation of Operating System and other system components like .NET and their respective versions/patches.
I suggest to first bring the SAP GUI to the latest patch level and hopefully this will solve the problem. If the problem still persists, then compare the other systems of your department to search for differences in Operating System and other components. Update or upgrade these components too if necessary.
Best regards,
Sander