jvm not found error

[pricejosephd]

I'm having a problem with rake finding the JVM. Java works otherwise
with Eclipse, Android dev, and everything else, but won't work for the
flexsdk that Sprouts installed.

Here's my ruby -v, my gem -v, and the error I get on 'rake'
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ruby 1.9.2p290 (2011-07-09) [i386-mingw32]

1.8.10

C:/Users/joseph/Sprouts/1.1/cache/flex4/4.5.0.20967/bin/mxmlc -debug -
output=bin\TestProject-debug.swf -static-runtime-shared-libraries src
\TestProject.as rake aborted!
[ERROR] Error: could not find a JVM.

Tasks: TOP => default => run => bin/TestProject-debug.swf
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My JAVA_HOME is set to 'C:\Program Files\Java'.