I just purchased the portable version and installed it fine. I also run this on my PC.
I took the time tonight to recreate/clean up my PC version's toolbars and then built the portable toolbars and ejected the USB.
I opened up DO on my PC and I had totally overwritten my new PC toolbars. I renamed them differently, so I am sure what happened.
To prevent this from happening again, can you please let me know how to run the two different versions from the same PC? I realize that this is total user error.