From reading the comments at Bug #91849 it's clear that my video card is the problem. It doesn't support 24-bit mode, even though it reports that it does! Changing to 16-bit mode solved the problem.
From reading the comments at Bug #91849 it's clear that my video card is the problem. It doesn't support 24-bit mode, even though it reports that it does! Changing to 16-bit mode solved the problem.