Bug in TBitmap.SaveToFile ?

Hi,

    When I try to open a bitmap saved using TBitmap.SaveToFile with
Adobe Photoshop 5.0 it refuses to open it, saying "Coud not open the
document because the file-format module cannot parse the file." Ms Paint
can open the bitmap fine though.

    Anyone ever had this bug ? What can I do ?

Regards,
D. Filion