What to do if Desura Crashes:
Desura has an automatic crash dump producing processes in it. If Desura crashes it will produce a dump in the Desura common application folder. The dump file contains the last things Desura did before the crash. These dumps are used by the developers to fix crashes and are automatically submitted (you can also turn this off in the settings menu).
If Desura keeps on crashing before login the best way to try and solve this is to force an update. In the start menu, goto the Desura folder and select the link Desura (force update). This will redownload the latest public release.
What to do if Desura Hangs:
If Desura hangs (becomes unresponsive or takes 100% cpu and does nothing) the best thing you can do is to send us a manual crash dump.
Go to the folder where Desura is installed (Default is C:\program files\Desura) and run the program dumpgen.exe. This will generate a dump of Desura and compress it and upload it to Desura servers for the developers to analyze.
You will have to kill Desura via Task manager (ctrl + shift + esc) after otherwise you wont be able to restart Desura.
What to do if an error occurred:
If Desura did something you didnt expect or didnt do something you expected the best way to let us know is via the forums.