what is wrong here

i went to my MTW directory and found a file called system.log and it had the following

16:21:02.062 [system.io] [always] mounted pack packs/data_0.pack
16:21:02.218 [system.io] [always] mounted pack packs/data_1.pack
16:21:02.390 [system.io] [always] mounted pack packs/data_2.pack
16:21:02.562 [system.io] [always] mounted pack packs/data_3.pack
16:21:02.828 [system.io] [always] mounted pack packs/data_4.pack
16:21:02.906 [system.io] [always] mounted pack packs/localized.pack
16:21:07.515 [data.missing] [warning] missing/invalid cursor for ANISELECT
16:21:07.578 [data.missing] [warning] missing/invalid cursor for MODIFIER_SABOTAGE
16:21:07.609 [data.missing] [warning] missing/invalid cursor for MODIFIER_TRADE
16:21:08.015 [data.missing] [warning] missing/invalid cursor for DRAGGABLE
16:21:08.015 [data.missing] [warning] missing/invalid cursor for DRAGGING
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_MULTIPLE_SELECT
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_ATTACK
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_PLACE_CHARACTER
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_PLACE_RESOURCE
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_PLACE_FORT
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_MOVE_OBJECT
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_PLACE_WATCHTOWER
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_DEPLOYMENT_AREA
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_PLACE_TILE
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_PLACE_SPECIAL_PIECE
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_PAINT
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_ADJUST_HEIGHTS
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_ADD_UNIT
16:21:08.093 [data.missing] [warning] missing/invalid cursor for MODIFIER_PLACE_SETTLEMENT
16:21:23.343 [data.missing] [warning] Cannot find the portrait path: data/ui/mesoamerican/portraits/portraits/young/civilians/000.tga, using the default culture path if it exists

and on and on. What does it mean. Do i have to reinstall or something?

i've noticed the same here, i think it's just some stuff ca didn't include anymore, but didn't bother fixing all the references, seeing as it's not critical and won't slow down the game (just guessing btw). Programmers tend to focus on eliminating the [error] entries, [warning] entries usually can be ignored when writing code.