Linking in Editor produces only "javascript:mctmp(0)"

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Whenever I want to link to a file or another page of my site this is what happens:
when chooing the file or page the popup won't close anymore and when I manually close it the link has a href of "javascript:mctmp(0)".

This happens throughout in Safari/FF/IE9

concrete 5.4.2.1 (reporting that this is the newest although there's a 5.4.2.2)
linux server apache, PHP Version 5.3.3-7+squeeze3 (lots of other c5 sites on that server w/o that problem)

What I did:
backuped everything
maintenance mode
updated concrete5 by donwloading latest and copying the concrete folder into root. entered the upgrade-link mentioned in INSTALL. it confirmed a successful update to 5.4.2.1 (!)

Please help, my customer needs to get his files updated asap.

Kind regards

Alex Braendle

abra100pro
 
abra100pro replied on at Permalink Reply
abra100pro
I guess I found out:
Looking at sitewide settings > debug > environment I found that /js/tinymcs overwrote the installation update I made only with copying the concrete5 core folder into the webroot. I renamed /js to /jsx to test this and the problem was gone :-)

Sorry for the urge, I found out just 30 minutes after posting, but anyway, perhaps it helps someone else.