Unwanted Transparency

Blitz3D Forums/Blitz3D Programming/Unwanted Transparency

I just attempted to use the LoadSprite() command for the first time in ages, but was surprised to see the resulting sprites being rendered with transparency. It appears that the colour map is being used as an alpha map (ie darker areas are more transparent) as happens when using an alpha flag on a texture with no alpha channel.

I don't remember this happening before. Surely sprites should be completely opaque by default? As ever, apologies if I'm being really stupid, but how can I make my sprites opaque again?