Until a few days ago, draftsight was working without a problem. I then received a notification to say that my license is up for renewal in 30 days. I checked the don't remind me again check box and clicked on okay. Now Draftsight randomly stops working such that when I try execute a command, a windows message pops up saying that Draftsight is not responding and the program needs to close. This also occurs when I try open a second instance of Draftsight.

I have tried uninstalling Drftsight and deleting all the Draftsight folders remaining as well deleting the registry key folders, and then re-installing Draftsight. After doing this Draftsight works okay for a while and then suddenly stops working. 

Any ideas on what else can be wrong?