Something weird with Windows 10 and RB .seq files. I can open them from within RB but there doesn't seem to be a way to associate the .seq files with RB. In other words Windows knows the .sgu files are BIAB and you double click them and they open in BIAB. If you double click a .seq you get a pop up that shows Windows doesn't know what to open it with. In past versions of Windows you could point it to the program to open it with and then any time you opened a file with that extension it would use the program you pointed it to. Windows 10 allows you to point to the program for .seq with convoluted method of going thru the apps menu but doesn't hold it except for opening that one file. Hope this makes sense.