I am so frustrated by how unstable Pre Pro is, on my SB, and why, on my much less powerful tower, that came with Windows 98 and is currently running Windows 10 these issues do not occur. There are times when I am editing clips on my SB and everything appears to be running smoothly until I click on "File". At first, nothing happens for several seconds, then I notice the wheel, as Pr goes into a tailspin and, several minutes later, times out. This also happens when I hit a Preferences option. I am able to open the Edit menu and the Preferences flyout but as soon as I select an option from the flyout Pr goes into another tailspin f/b a timeout. I tried Alt-F, instead of clicking the File option, which has opened the File menu. Since it seemed to work I decided I'd use that as a workaround, but I haven't figured out if that always works, for example sometimes clicking File works and sometimes it doesn't. I know Alt-F has worked but I don't know if that's only because hitting File would have worked that time. The problem is that sometimes hitting File does work. When it isn't working I get a timeout, and I wonder if, instead, I'd used Alt-F I would have gotten a drop-down menu or a timeout. None of this is resolved by rebooting my SB and none of this happens on my far less powerful tower. I can't help but believe that this is a SB issue and that, ultimately, I will be forced to invest in a new computer because I will not going to abandon my video editor, the learning curve is just too steep to start over with a new editor. Of course, I would much rather stick with my SB, I can't really afford another $2+ K computer.