LB2cfg.exe is in the main LB2 folder, but ONLY If you have installed the DDU patch.
If you haven't installed the DDU and don't have a Glide wrapper, I imagine it is running in SOFTWARE mode and looks pretty crappy!!
Without the DDU the only options are Software and GLIDE, but if you activate the GLIDE wrapper, it should recognize it and automatically use GLIDE as the preferred option.
Recluse