Sprites imported in 32-bit colour mode

[LeChuck]

Somewhere along the road, my game accidentally got turned from 16-bit into 32-bit colour mode. During that time I imported a lot of sprites. I discovered the error, and turned 16-bit back on. Then, a lot of sprites imported show a yellow warning label.

This doesn't seem affect the normal gameplay, but once the game is restarted in-game, certain sprites disappear / become invisible for no apparent reason at all. Worst of all: it's not even consistent, sometimes one spesific sprite will show, but suddenly the next time I enter the screen it's gone. I'm thinking it's because I turned back on 16-bit colour mode with imported 32-bit sprites.

Today I turned 32-bit colour mode back on. I've messed around ingame for half an hour now and has hit no graphical errors that would happen within 2 or 3 minutes when I run it in 16-bit colour mode. Has anyone else had this kind of experience? Is this a viable explanation or are the gods fooling me and having a laugh?

What are the disadvantages as to having 32-bit colour mode today? I would think all computers made in the last five years would support it. Speed is really all that matters to me, as my game doesn't require the transparency options etc. that 32-bit offers. AND FINALLY: Is there a way for me to go back into 16-bit colour mode and convert all those sprites with a warning label (imported in 32-bit mode) back into 16-bit? There are literally hundreds of sprites, and would take forever to do by hand. 

[Galen]

Just use 32 Bit. The only change would be perhaps a bit slower (I'm talking miliseconds, nowadays) and perhaps a lack of compatibility with incredibly old systems (pre 2000).