I am currently using this theme: http://www.deviantart.com/deviation/931543

Now I get an error message every now and then, stating "mldmeter: Asynchronous socket error 10060". Can anybody help me with that? Thanks in advance! =)

This theme is designed to work with another application from what I remember. If you don't have this application installed you get this error. Check the readme for the theme and it might contain details. Otherwise take a search through the theme to find where it references mldmeter and remove the reference. I think this is what I did but I can't fully remember.

iirc there already was a thread about this, something about removing a section in rainmeter.ini.