The WG1 SPM states (p 5) that 

"New data since the TAR now show that losses from the ice sheets of Greenland and Antarctica have very likely contributed to sea level rise over 1993 to 2003 (see Table SPM.1). Flow speed has increased for some Greenland and Antarctic outlet glaciers, which drain ice from the interior of the ice sheets. The corresponding increased ice sheet mass loss has often followed thinning, reduction or loss of ice shelves or loss of floating glacier tongues."

In Table SPM1 they attribute 0.21 mm/yr of sea level rise over the period 1993-2003 to Antarctic ice loss.

These claims are contradicted by recent papers that show that the Antarctic ice sheet is growing.

I. Joughin and S. Tulaczyk, Positive Mass Balance of the Ross Ice Streams, West Antarctic, Science 295, 476-480 (2002) - They found strong evidence for ice sheet growth in West Antarctica.

C.H. Davis et al, Snowfall-Driven Growth in East Antarctic Ice Sheet Mitigates Recent Sea-Level Rise, Science 308, 1898-1901 (2005) - They found that the East Antarctic ice sheet is growing at 45 GT/yr, corresponding to a sea level decrease of 0.12 mm/yr. 

D.J. Wingham et al,  Mass balance of the Antarctic ice sheet, Phil Trans Roy Soc A 364, 1627-1635 (2006) - They found that the Antarctic ice sheet is growing at 27 GT/yr, corresponding to a sea level fall of 0.08 mm/yr. The study covered 72% of Antarctica and the period 1992-2003.  

The IPCC cites the Davis et al paper in section 4.6 but ignores the Wingham et al paper (this paper came out in 2006, but other 2006 papers are cited). On the other hand, the IPCC cites other papers by Shepherd and Wingham that happen to support the IPCC agenda (for example "Warm ocean is eroding West Antarctic Ice Sheet").