I get this result as well. Each single shows a hashrate and cgminer reports about 35 work units, but U is a constant 0. Pointed to mine2.btcguild.com:8332, using the Windows binary.

I open cgminer 2.8.2 and type in btcguild.com:8332, then my username and then I leave password blank. My gpus start working and i get 360 mhash per gpu which is normal however no shares are accepted. Any ideas? Ive never used stratum before

It works fine for me with 2.7.5. What advantages would swtiching to 2.8.2 do for me if I use normal mining method?

Dynamic intensity seems to be broken on Linux in 2.8.2. It just stays at 14 and spits out hardware errors.

--fix-protocol on windows 2.8.2 works and is submitting shares. If I try to let it default to stratum it's a no go.
Stratum works in 2.8.1 hope this helps.

Found the bug which would affect windows and it was a trivial typo change. I will rush out yet another release, correcting this and dynamic intensity mode today.

New version: 2.8.3, 12th October 2012

Fixed a critical windows bug and added some goodies. Hopefully this version brings us close to making a stratum capable release the current stable version.


Human readable changelog
Fixed the windows bug in 2.8.2 which made it submit no shares.
Fixed the bug with dynamic intensity which would make it go straight to 14 and get stuck there.
Updated the device display code now to be able to show kilo/mega/giga/tera/peta/exa when the value is too high, thus supporting hashrates of devices up to exahashes (10^18).
Cgminer now displays the actual share difficulty target it hit as well as the current pool difficulty like so:


Full changelog
- Left align values that are suffix_string generated.
- Share_diff should not be converting the work data to hex.
- Off by one error.
- Prevent overflows of the port char array in extract_sockaddr.
- Disable stratum detection with scrypt.
- Use the suffix string function when displaying device hashrates.
- Be consistent with the get_statline function.
- Use the suffix string function for displaying hashrate with 4 significant
digits.
- Display the actual share diff next to the pool required diff, using a suffix
creation function to prevent values of >1000 being shown in their entirety.
- Fix 4 * 0 being 0 that would break dynamic intensity mode.
- Fix wrong byteswap macro being used on mingw32 which was breaking target
generation on stratum.

ok, so im dragging my gaming rig in to mining aswell, but im having some trouble finding out how to only mine on 1 card while gaming,

im running this while not gaming "cgminer -o us2.eclipsemc.com:8337 -u xxxxxx -p xxxxx --shaders 1792 --intensity 12 --worksize 256 -v 1"

but how can i cut out gpu 0 when running bf3?

I still have problems with 2.8.3.
Now i made a logfile : blogya.de/downloadsonlyforyou/logfile.txt
I crosscompile it for ARM7 maybe that is the problem.

is it normal, that in stratum protocol the nonce is different endian, than the nonce that is submitted by the worker ?

 [2012-10-12 12:49:27] Pushing submit work to work thread
 [2012-10-12 12:49:27] (3:5) submitted de65d291
 [2012-10-12 12:49:27] (3): entering poll loop
 [2012-10-12 12:49:27] (10): entering poll loop
 [2012-10-12 12:49:27] Popping work to work thread
 [2012-10-12 12:49:27] Creating extra submit work thread
 [2012-10-12 12:49:27] Submitting share 241c7c3e to pool 0
 [2012-10-12 12:49:27] SEND: {"params": ["MyUsername", "43402", "00000000", "5077f59c", "91d265de"], "id": 5, "method": "mining.submit"}

Later in the log you can see, that my driver is working together with 50BTC.com

Any Ideas ?

thank you verry much mate