Has 1.81 been released somewhere? I have 1.80, and clicking on update says there isn't one. Your website has 1.78 or 1.80 beta available, but no 1.81.
I was about to, but then my computer crashed with a boot failure, so I'm busy getting things working again.
Downloaded and installed, thanks. But the setup program is a bit fragile. I got a memory error twice, then it told me it had installed but hadn't done so (still said version 1.80), so I had to try it a few times. Eventually it got there (one caused Boinctasks to crash). The memory error is below, the crash log doesn't seem to exist, although since the dialog box telling me where to look disappeared after 5 seconds, I may have gone to the wrong place.
ShellExecuteEx failed; code 299.
Only part of a ReadProcessMemory or WriteProcessMemory request was completed.