What does "Rejected untracked stratum share" mean?


cgminer version 3.5.0 - Started: [2014-02-19 10:56:44]
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 (5s):51.20K (avg):51.35Kh/s | A:512  R:14848  HW:0  WU:45.8/m
 ST: 1  SS: 0  NB: 82  LW: 333  GF: 0  RF: 0
 Connected to us.clevermining.com diff 512 with stratum as user
 Block: dbfbf5624d7fff06...  Diff:13.3M  Started: [11:14:58]  Best share: 1.77K
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 [P]ool management [G]PU management ettings [D]isplay options [Q]uit
 GPU 0:                | 51.08K/51.35Kh/s | A:512 R:1024 HW:0 WU: 45.8/m I:12
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 [2014-02-19 11:14:37] Stratum from pool 0 detected new block
 [2014-02-19 11:14:49] Rejected untracked stratum share from pool 0
 [2014-02-19 11:14:49] Network diff set to 851K
 [2014-02-19 11:14:49] Stratum from pool 0 detected new block
 [2014-02-19 11:14:51] Network diff set to 932K
 [2014-02-19 11:14:51] Stratum from pool 0 detected new block
 [2014-02-19 11:14:53] Network diff set to 989K
 [2014-02-19 11:14:53] Stratum from pool 0 detected new block
 [2014-02-19 11:14:58] Rejected untracked stratum share from pool 0
 [2014-02-19 11:14:58] Network diff set to 13.3M
 [2014-02-19 11:14:58] Stratum from pool 0 detected new block


they are counted in the first row (R:14848), but not in the GPU stats (R:1024).


this are my settings:
./cgminer --scrypt -o stratum+tcp://us.clevermining.com:3333 -u -p x -g 1 -w 64 -I 12 --queue 0