Upgraded to v.7.6.0 yesterday. One of our users contacted me this morning and mentioned that the "Mark All Read" (bottom left of forum summary page) was not working. I clicked on it and got http://www.byzcath.org/forums/ubbthreads.php/ubb/markallread

I did not receive any errors when upgrading. And the function works perfectly both here and in UBBDEV.

Thanks.