The fix (adding adjustment of fRenderInfo.fDestPtr) made kRenderJustXForceLeft behave as intended (left-aligning the edge of the bitmap rather than the side bearing of the first character) but cuts off shadows in some places (e.g. at the left edges of "BUDDIES" and "NEIGHBORS" in the mini KI). To ensure enough space for the shadow, and considering that all content was developed and visually optimized with the bug in place, it seems better to preserve the buggy behavior and make kRenderJustXForceLeft work exactly like kRenderJustXLeft.
Christian Walther