For installation questions not directly related to capella please also visit the FAQ general.
The automatic software update cannot be executed correctly.
This problem occurs sometimes when an older capella version was previously installed.
When you have initially installed capella with an invalid serial number, merely uninstalling the software is not enough to enable you to license again.
You are working with Windows XP and did not install at least Service Pack 2.
Not all Windows 7 users are affected by computer crashes. If crashes occur (in connection with freeform text),