Described herein are methods and systems that allow a user to reposition or size a graphics item or background such that a portion of the graphics item resides outside the background. The MPEG video decoding system does not reset the video buffer during the overflow period, which allows a decoding of the data already stored in the video buffer, thereby minimizing the loss of data due to an overflow. The carbonyl-containing moiety may include RCO\u2014, where R is alkoxy or haloalkyl. The query processing software obtains results from the coprocessor and performs one or more additional operations thereon to generate a final result of the query.