Reinstalled 5.3, nothing works!

Hi.
I have had problems with 6.0.beta2 so I decided to reinstall Subsonic stable 5.3.
Now, the interface looks like this:https://drive.google.com/file/d/0B6r3WlnWWknObEZST3pPQXRqY0E/view?usp=sharing. Computer has been rebooted after deleting all c:\subsonic folder.
I'm suspecting something behind Subsonic causes this to happen, but my computer skills are not adequate.
My fresh log (I can't see anything out of the ordinary here):
[4/3/16 11:59:21 AM CEST] INFO HsqlDaoHelper Checking database schema.
[4/3/16 11:59:22 AM CEST] INFO HsqlDaoHelper Done checking database schema.
[4/3/16 11:59:22 AM CEST] INFO SettingsService Java: 1.8.0_77, OS: Windows 10
[4/3/16 11:59:22 AM CEST] INFO VersionService Resolved local Subsonic version to: 5.3
[4/3/16 11:59:22 AM CEST] INFO MediaScannerService Automatic media library scanning scheduled to run every 1 day(s), starting at Mon Apr 04 03:00:00 CEST 2016
[4/3/16 11:59:22 AM CEST] INFO UPnPService Starting UPnP service...
[4/3/16 11:59:22 AM CEST] INFO PodcastService Automatic Podcast update scheduled to run every 24 hour(s), starting at Sun Apr 03 12:04:22 CEST 2016
[4/3/16 11:59:22 AM CEST] INFO UPnPService Disabling UPnP/DLNA media server
[4/3/16 11:59:22 AM CEST] INFO UPnPService Starting UPnP service - Done!
[4/3/16 11:59:29 AM CEST] INFO BootstrapVerificationFilter Servlet container: jetty-6.1.x
[4/3/16 11:59:32 AM CEST] INFO VersionService Resolved latest Subsonic final version to: 5.3
[4/3/16 11:59:32 AM CEST] INFO VersionService Resolved latest Subsonic beta version to: 6.0.beta2
[4/3/16 11:59:33 AM CEST] INFO NetworkService Deleted port mapping for port 4040
[4/3/16 12:04:22 PM CEST] INFO PodcastService Starting scheduled Podcast refresh.
[4/3/16 12:04:22 PM CEST] INFO PodcastService Completed scheduled Podcast refresh.
I have had problems with 6.0.beta2 so I decided to reinstall Subsonic stable 5.3.
Now, the interface looks like this:https://drive.google.com/file/d/0B6r3WlnWWknObEZST3pPQXRqY0E/view?usp=sharing. Computer has been rebooted after deleting all c:\subsonic folder.
I'm suspecting something behind Subsonic causes this to happen, but my computer skills are not adequate.
My fresh log (I can't see anything out of the ordinary here):
[4/3/16 11:59:21 AM CEST] INFO HsqlDaoHelper Checking database schema.
[4/3/16 11:59:22 AM CEST] INFO HsqlDaoHelper Done checking database schema.
[4/3/16 11:59:22 AM CEST] INFO SettingsService Java: 1.8.0_77, OS: Windows 10
[4/3/16 11:59:22 AM CEST] INFO VersionService Resolved local Subsonic version to: 5.3
[4/3/16 11:59:22 AM CEST] INFO MediaScannerService Automatic media library scanning scheduled to run every 1 day(s), starting at Mon Apr 04 03:00:00 CEST 2016
[4/3/16 11:59:22 AM CEST] INFO UPnPService Starting UPnP service...
[4/3/16 11:59:22 AM CEST] INFO PodcastService Automatic Podcast update scheduled to run every 24 hour(s), starting at Sun Apr 03 12:04:22 CEST 2016
[4/3/16 11:59:22 AM CEST] INFO UPnPService Disabling UPnP/DLNA media server
[4/3/16 11:59:22 AM CEST] INFO UPnPService Starting UPnP service - Done!
[4/3/16 11:59:29 AM CEST] INFO BootstrapVerificationFilter Servlet container: jetty-6.1.x
[4/3/16 11:59:32 AM CEST] INFO VersionService Resolved latest Subsonic final version to: 5.3
[4/3/16 11:59:32 AM CEST] INFO VersionService Resolved latest Subsonic beta version to: 6.0.beta2
[4/3/16 11:59:33 AM CEST] INFO NetworkService Deleted port mapping for port 4040
[4/3/16 12:04:22 PM CEST] INFO PodcastService Starting scheduled Podcast refresh.
[4/3/16 12:04:22 PM CEST] INFO PodcastService Completed scheduled Podcast refresh.