We hope your start up window look like this

If you start-up-view does not look like this - you are running an old version of PC-Horse (version 2).

Version 2 is no more supported. 

Please install the new version 3 from here.

This is the look of a version 3 start up:

If it looks like this, you are running an old version. Please uppdate to version 3.

If you have a very early version 2 you eventually must upgrade your old version v2 before converting to version 3 in order to ensure the import of your stables and feed lists. 

See more under tab "MANUAL v2"