Just cloned the git repo on my Ubuntu 11.04 machine and started the miner without any issues at all.
Thanks for such a smooth piece of software 
Currently reporting ~ 6.3 Mhash/s on my Geforce 8600 GT, very impressive.

One additional question: do the hashes generated by poclbm show up in the "hashespersec" statistic shown by "bitcoind getinfo"? Seems like they don't...

Florian