This is a known problem in JSE 1.6:

http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6493522
http://forum.java.sun.com/thread.jspa?threadID=5117849

Unfortunately Sun did not manage to fix this before releasing 1.6 to the public.

I am currently trying to find a workaround but cannot promise anything...

Until then, you can switch back to 1.5 without removing 1.6 by modifing the registry:

[HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment]
"CurrentVersion"="1.5"

Ok, even better: I found a rather simple workaround for this problem now. It will be in the next release.

WooHoo! thanks!
When are you expecting to be releasing the next update?

I just uploaded the new version 2.0.020 that should fix this problem. Please report if it does not work for you.