CP on Linux:
I kept trying and found that just installing poclbm as a package completely kinda fixed the 127.0.0.1 issue.
I was now back at the "error=13 permission denied" track.
I solved that by giving poclbm.exe execution rights:
chmod +x /poclbm.exe
Now when starting CP all is fine, CP is picking the right pool and then: nothing.
* Cherry Picking!
=====================================
When I type info I get the stats: 0 for all.
After some time, CP starts to do a check for most efficient pool again, like it should, and then nothing again, dead silence...
poclbm probably isn't working. If you can check GPU loads and see if shares are actually being submitted, but my guess is there aren't.