>> I had no luck with this. Eventually I just had to go with unique names until the next time VFP got started.
>
>try this:
>
>- disconnect the image file from the control, for example, clear the Picture property
>
>- issue CLEAR RESOURCES
>
>- reconnect the image file and Refresh

I had tried:
thisform.objImage.picture=" "
Clear Resources
thisform.objImage.picture="c:\files\checkImage.tif"
thisform.refresh()

most of the time it did not work.
now I use a sequential naming process and use the a variable in the .picture:
mVar = "c:\files\Image01.tif"
thisform.objImage.picture=mVar