Andrea,

Thanks very much for running Valgrind -- it is appreciated as I do not have patience enough to run it.  From this GG was able to find 2 fixes for lost bytes in performanceprefs.C and edl.C.  There is also a mysterious report of "invalid read of size 4" when loading LV2 plugins.  He could not generate these same errors on Fedora so he updated our Arch system and tried it there and still could not.  However, if you have some spare time in the future, could you replace the 2 files I will send in a separate email to just you, build with these 2 and then run Valgrind again (you only have to get past the lv2 plugin loads so not as time-consuming)?  This will let us know if that modification he added to these 2 files fixes the original problem so that there are no more "invalid reads".  Let me know if this makes sense or if there is a problem.