Just cant sync the blockchain (bitcoin v0.8.3.0-g40809ae-beta) on Ubuntu 13.04

[dego]

I just can't get my bitcoin client (v0.8.3.0-g40809ae-beta) to download the whole blockchain.

I tried everything

1. bitcoin-qt -reindex
2. only left wallet.dat in the user directory and -reindex
3. started with an empty user directory and -reindex
4. got bootstrap.dat and -reindex

I always waited for hours/days but at some point it always got stuck... best was 50 weeks

My machine shouldn't be the problem:AMD Phenom X1090 6x3.2 Ghz, 16GB RAM, SSDs.

What else could I try (besides of using an online wallet)?

Thanks for any hints...