Edvard,
please use the "global" code-signing option.
http://www.lindersoft.com/forums/showthread.php?46908
I would suggest to let the IDE install the signtool.exe (Help -> Get
Microsoft SignTool.exe)
Make sure your password is correct and set both SHA-1 and SHA-2 timestamp
servers to http://timestamp.comodoca.com
If it still does not work (and you are sure your password is correct and
CapiCom ist installed), put the SignTool.exe onto your anti-virus software's
"exclusion" list.
Friedrich