A bug was recently discovered in v0.20.8 for Windows version that, in some cases, the Login Window is not shown long after the Remobo program is launched and the Splash screen displayed. It can take minutes to hours before the Login Window is shown on screen; during the time the Splash screen is gone and there's no Remobo window on screen, although the Remobo.exe process is still running, based on the Task Manager's Process List.

The bug is in our new event-processing logic, and it's been fixed in the next releases of Remobo, v0.21.x, which is now under tests before official release. You can either request to be a Private-Alpha tester by emailing your Forum UserID to "tester (at) remobo (dot) com", or downgrade to the previous version of v0.20.1:

Remobo v0.20.1 for Windows

Notice that this bug affects only windows version of v0.20.8.

Sorry for the problems. We'll make public release of next version soon.

[Update]: this bug is now fixed in the v0.22.0 release.