Yesterday I started playing this game again - still really great!
But I experienced the same problem I always had a few years ago: About every second server I join (or after a mapchange) my game freezes at the welcomescreen of the server (see picture). I cannot press OK or do anything else. The only way out is to kill the hl2.exe-process.
I could not find any other thread with the same problem - but maybe someone can help me with this.

I thought it could be a problem with the Internet Explorer, but different versions did not solve the problem.

Thank you!