Every time I check the servers they're always all empty or shown so.
I seem to be able to connect fine, just tested moto's as it's usually the only one with players...
Crashed on me when quitting. (I have more but it's for the Steam version which I also have installed... and will post that in that subforum.)
[EDIT]
Well in addition to trying the Steam beta version as noted above I also just ran HL2, no problem with that...
[/EDIT]