Toad keeps crashing

I will Navigate away for Toad for 5 seconds come back do a sort on a table big or small table and toad will lock up.

What i think is happening is that it losses connection in that split second and doesn’t know what to do when i do a sort. But what is really odd is that sometimes i can be a way for 2 min and come back do a sort and thing goes wrong, but it sometime its even if i don’t navigate away and not touch Toad it will do the same thing even just selecting another table and click on data it will lock up with only 100k rows. Window 7 11.6 Toad any ideas.