[plt-scheme] still got a little probleme with transparency

We've installed Win2k instead of Win98 and now the
transparency works well,but we've got a little
problem.We tryed to use transparent bitmap in
snip-image%(we need to move the .GIF image)but it
doesn't works,the background is white.Do we need to
set the snip background  transparent? by using style%
or delta-style%?

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