A restatement involving Cash?

Sometimes it seems like it is difficult to find anything to talk about when discussing Cash. I mean cash is cash and cash equivalents and now lets move on to accounts receivable. However, GSI Commerce is a tech company that has discussed its cash balance in a number of its press releases, I assume to show the company's fiscal strength. However, it now appears that maybe that the company's cash equivalents really weren't equivalent. In an 8-K filing GSI stated that:

In its press release dated April 27, 2005, GSI Commerce, Inc. (the "Registrant") reported that it had reclassified $6.3 million from cash and cash equivalents to marketable securities as of January 1, 2005. As discussed below, as of January 1, 2005 and January 3, 2004, the Registrant expects to reclassify $36.5 million and $18.8 million, respectively, from cash and cash equivalents to marketable securities. Additionally, in its press release dated April 27, 2005, the Registrant reported cash and cash equivalents of $11.7 million and marketable securities of $31.5 million as of the quarter ended April 2, 2005, instead of $10.7 million and $32.5 million, respectively.

Before the restatement GSI reported $56.5 M in cash and after will report $20 M. It is difficult to imagine that the company's auditors would have an issue with this topic. I wonder what the controversy was in the audit process. Maybe we will see in a lawsuit.