>>I will have to switch back to BMP for the time been (urgent), but I wld like to know how to fix this.
>
>With terabyte disks being so cheap nowadays, even bmp format isn't that bad. It's only about 10-20 times larger than jpg...

We are talking about old report that switches between 10 - 15 BMPs. Size is not an issue.
It is not worthed going through dll fixing excersize (on remote PC) just for sake of changing format. Especially that it might reocurr on another PC eventually. I prefer PNG becuse is better compatible with other stuff I use, but in this case will stick with bmp.

There are other cases where 'size matters' , this is just not one of those.

Cheers :)