I know you're getting bored of this , but it's been half an hour that
I've reseted the server. Here's the process information

Tasks: 61 total, 2 running, 59 sleeping,
Cpu(s): 23.5% us, 10.1% sy
Mem: 1035692k total, 550504k used, 485188k free,
Swap:1048088k total, 0k used,1048088k free, 343808k cached

PID USER PR NI VIRT RES SHR S %CPU %MEM
1309 firebird 16 0 349m 143m 5648 R 64.4 14.2

As you see, I have free ram, at least just for now.

Everyone is complaining here :(
I'm in trouble here :(

Yesterday, with classic server, i had nothing like this. But I had
the connection limit..