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Although failure of compressed EPCS configuration in Quartus 9.1 files is treated as a fact in Altera Forum, it's not listed with Quartus known issues. I wonder, if any forum member who oberved the problem ever filed a support request?
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Hi,
yes - I did (I had a service request with "mySupport" on Altera website. I got notice, that Altera has recognized this, and that this problem is on their list of things to be fixed in either next SP or next version of QuartusII (whatever comes first...).
Sincerely,
Carlhermann