Intel chipset = on board = usually crappy driver support.
Topo 2, 8, 32 and 128 are different than 4,16,64,256,512. The former are GIF, the latter JPG. For some reason there are drivers that don't like our GIF conversion. People have reported success in updating drivers -- for the video card, not the monitor.
You're right that disabled tilesets shouldn't be shown in the dropdown. There's no problem selecting one that's disabled -- it just goes to the nearest one that is enabled.
A temporary solution to this is to simply disable all the GIF tilesets and use the JPGs. I almost always run TF in that mode anyway since JPGs decode and therefore display faster, anyway.
Only when I do a big export or something do I turn on 2 Meter GIF. The other tilesets are actually redunant -- just different scales of the same base maps as the jpegs.