@ Claymore

I updated to v3.3 from a previous 3.x version and was no longer able to mine due to failing to create a big buffer.  I was forced to revert to v 1.2 to resolve the issue as any other builds replicate the problem.  Absolutely no changes were made to the system in question; all I did was close the previously working miner and updated the directory's contents. All environment variables have been set as well as 2 x 8 GB pagefiles and I've also removed temp files as well as the dag directory which I additionally decided to provide an alternate one on a seperate hard drive to hopefully eliminate the problem.  I also tried renaming the dag files successfully created by QTminer in hopes of using them with yours but that also didn't work. My other rig is also Hawaii-based and surprisingly doesn't suffer from this symptom.  I just gave v4.0 a try but it still introduces the same error.

Any feedback would be much appreciated!