I reinstalled the guest additions with no change. There is something very strange. When I select the 32 bit guest additions folder, it has a sub folder for OS2. I have used OS2, every thing in the 32 bit folder is very specific to OS2. BTW, last week Mint 6 would not start properly after a reboot. After the password it gave an error message. something like I was not logged in for 10 seconds and I am running out of disk space, suggested I start in fail safe mode, so I can fix the error. What error it is not even in the info box? I know I am not out of space I have 417GB free, and everything works fine in fail safe mode so far. Maybe it is time to install Gloria and reinstall Vbox?
The OS: Linux Mint 17.3 KDE
The Hardware: Dell 17R Special Edition, Intel Quad Core, i7 - 3.40 GHz, 8 GB Ram, HD 1TB
Video NVIDIA GeForce GT 650M 2GB
The Name: Bob