Problems with random picture showing up on projector screen

[meh?meh.]

I have a problem and I have no clue how to fix it. When I attach my macbook to a projector a picture shows up on the projection screen that is no longer on my computer (I think). I've searched for all images on my computer and the picture does not show up.

This picture was once my wallpaper but since has been deleted from my hard drive. But, as soon as I attach my adapter the picture appears on the projection screen, almost like a screensaver, while on my monitor I see nothing but my regular desktop. Once I start a slideshow with powerpoint, the picture disappears from the projector and my slideshow is normal. However, as soon as I end my slideshow, the picture is projected again. Again, this picture is not my wallpaper and does not appear when I search all images on my hard drive.

Any help would be extremely appreciated!

 

[merl1n]

I have a problem and I have no clue how to fix it. When I attach my macbook to a projector a picture shows up on the projection screen that is no longer on my computer (I think). I've searched for all images on my computer and the picture does not show up.

This picture was once my wallpaper but since has been deleted from my hard drive. But, as soon as I attach my adapter the picture appears on the projection screen, almost like a screensaver, while on my monitor I see nothing but my regular desktop. Once I start a slideshow with powerpoint, the picture disappears from the projector and my slideshow is normal. However, as soon as I end my slideshow, the picture is projected again. Again, this picture is not my wallpaper and does not appear when I search all images on my hard drive.

Any help would be extremely appreciated!

With the projector connected, go into System Prefs -> Desktop & Screen saver and select the Desktop tab. Change the picture to what you want (you can select the same one as what is on your desktop currently on the mac.

Desktop pictures are cached for the Display you are using. I found this out on my mbp. I use my mbp at home with an ACD and it shows a different picture than what is on my mbp when it is not attached. When I go to work, I hook it up to a Sun LCD and it has a totally different picture.

If that doesn't work, download OnyX ( a free maintenance utility) and clear out all of your caches. Then reboot.

See if that makes a difference.

 

[meh?meh.]

Thanks very much! I'll try that.