just downloaded the RC1 "Refresh" and installed it on my Notebook and it was good that i not did it on my HTPC !
I used the 1-Click Setup without TV because i don't need it.
The result was that the installation first hung and i had to terminate the process
Then i started it again and it said it was installed successfully.
Now
ALL additional plugins are removed and everything is set back to defaults incl. the skin and language...
I think i will leave it on my working HTPC as it is, if needed without MyWeather
