The program runs great BUT when I close it I keep getting this message:

DAZStudio.exe caused ACCESS_VIOLATION in module "C:Program FilesDAZ 3DDAZStudio4QtCore4.dll" at 0033:0000000077A01044, QObject::metaObject()+4 byte(s)

The tech folks at Daz seem stumped.

I need help with this also

The only thing I can find so far regarding that error is that someone started seeing it after they tried to install Reality 4.3 DAZ Studio Edition.

Found it on a google search:

https://forum.deviantart.com/technology/software/2448991/

QTCore4.dll isn't actually a DAZ file, it's a C++ library file. Windows loads system components with it. If I had to bet, I'd say you have a version of it somewhere on your computer that doesn't match what DAZ is expecting. I'd do a scan for that file on your computer, and if you find multiple copies, send DAZ the information on what the version numbers are and where they are stored on the machine (the directories). With DLL's, the first one to be loaded wins, so if you have multiple versions what program you are running will determine which one is loaded in memory which can make it tough to track down the problem.