VideoStudio :: 4GB Limit On MP4?

I am having difficulty generating a 43 minute video in .mp4 (1920x1080). I was able to successfully generate the (.mp4) video at 1280x720. I was also able to successfully generate an 11gb .wmv version and a 9gb .avi version. I have 120GB free space on a 500GB (NTFS) SSD.

Each time I try and generate the video using .mp4 and 1920x1080 the process dies after about 3 hours, always at 85% completion and the temporary work files created in the output directory are always very near 4gb (3.99gb) in size (but never over). That fact and the fact that I can generate all the other versions makes me wonder if there is some kind of 4GB limit to mp4 (in VideoStudio).

I have tried to do some research and it appears there are .mp4 files > 4gb in the wild but my version of Video Studio X5 Ultimate sure seems to have this limitation. If upgrading to X6 would fix this, I'd be happy to do this. But don't need to upgrade if it doesn't fix this issue.

I actually have 2 laptops (both Dell Latitudes) and have attempted to generate the video at the 1920x1080 resolution on both and both fail exactly the same way (85%, just under 4gb temp file).

Event viewer entry looks like this:
Faulting application name: vstudio.exe, version: 15.0.0.0, time stamp: 0x5149e750
Faulting module name: ntdll.dll, version: 6.1.7601.17725, time stamp: 0x4ec49b8f
Exception 0xc0000374
Fault offset: 0x000ce6c3
Faulting process id: 0x3108
Faulting application start time: 0x01ce87fcea000a4a
Faulting application path: C:Program Files (x86)CorelCorel VideoStudio Ultimate X5vstudio.exe
Faulting module path: C:WindowsSysWOW64
tdll.dll
Report Id: fcc5db0d-f409-11e2-a2b9-005056c00008

I am running 64-bit Windows 7 (Ultimate).

Is there a codec or driver or something I can download that might fix this? I'd have to mention although I've owned video editing software for years (beginning with Ulead - Media Studio Pro) I would not consider myself very well read in the technical video arena.