Working around the VBEMP 9x DOS box bug.

So, I'm using Bearwindows's VBEMP 9x driver on Windows 98. I was installing a driver for another piece of hardware that I have, when the installer decided to open up a DOS box and gave me the funny colors on the screen. Usually I can press Alt+Enter to enter full screen and work around the bug, but not this time. I tried closing out the window with Alt+F4 and minimizing all windows with WinKey+D, and nothing worked. Every time I reboot, the box pops up again right after I log in, and messes up my screen, so I can't see anything of what's going on. I tried to reboot into safe mode and disable the VBEMP driver, but safe mode disables not only my graphics driver, but my mouse and keyboard drivers along with it, so I can't do anything. Any workarounds? I know I can set the DOS prompt to open in full screen, but I forgot about it. Is there a way to temporarily disable the graphics driver while in DOS mode?