[SQU] connection refused with squid...

Hello!
I have a bad problem with my squid (2.3STABLE4)
I upgraded the server with extra RAM, but the simms must be deffective,
cause the server crashed after about one day (freezed in fact)
the only thing to do was stop the server and restart, fsck, errors found
on hdd, etc...
the only problem noticed till now is squid doesn't want to work
anymore...
I tried to rebuildthe cache, I tried upgrading (from 2.3STABLE3 to
2.3STABLE4), i tried uninstalling, deleted all squid related files, then
reinstalling squid again, with the same working configuration file, but
the result is always the same: squid doesn't work...
my browser sais:
Connect: Contacting host x.x.x.x:3128 (that's my server) and after a
while i get a Connection failed with error 110 Connection timed out...

when i use the client program in linux i get the message:
client: ERROR: Cannot connect to localhost:3128: Connection refused

can you please tell me what to do with it? i ran out of ideas, and don't
want to reinstall the hole server again...

thank you very much...

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