I am new to Draftsight and I like tha program very much.  Installed it in my laptop and the in my PC last week.  It was working but today I receive a message that I needed to activate it.  I had already done it.  Try to redo the activation and after that the program is crashing on Win8.1 Pro after the activation.  Tried unistalling, re installing, deleting activation SWActivation key on the registry, try other email, tried activation later, tried erasing files under c:\\users\\ my username \\ appdata..., Nothing works.  This is windows log on the crash:

Faulting application name: DraftSight.exe, version: 11.0.0.45804, time stamp: 0x5220b1eeFaulting module name: unknown, version: 0.0.0.0, time stamp: 0x00000000Exception code: 0xc0000005Fault offset: 0x0000000000000000Faulting process id: 0x1428Faulting application start time: 0x01cf26b0561e873eFaulting application path: C:\\Program Files\\Dassault Systemes\\DraftSight\\bin\\DraftSight.exeFaulting module path: unknownReport Id: 9582404b-92a3-11e3-bf91-00252204989aFaulting package full name: Faulting package-relative application ID:

Please Help