... I think I have now sorted out the problem with the conversions without having to download the program you suggested, it was all down to finger trouble on my part. The attached files should verify if all is well. Best regards. Brian Nicholls. Attachment: attach_876_1224_Signal_Box_Large-EBN.gif 972 posted: 19 Sep 2010 16:33 from: Brian Nicholls Heres the bitmap file of the same signal box. regards, Brian Nicholls. Attachment: attach_877_1224_Signal_Box_Large-EBN.bmp 383 posted: 19 Sep 2010 16:35 from: Brian Nicholls And ... a GIF file of part of the sketch I used to draw image. regards. Brian Nicholls. Attachment: attach_878_1224_Signal_Box_End_Vie w.gif 1050 posted: 19 Sep 2010 18:33 from: bainin Hi, Don't know if this will help, but it's free! This comes from a recent newsletter: Kill White is a plugin (for Windows) that makes white color in an image transparent. http://mikes3d.com/extra/2010/07/kill-white/ I haven't had a chance to use it yet. I ...