quarterly discrepancy

Gday
Just having a quick look through the last couple of quarterlys......can someone knowledgeable please tell me what caused the following discrepancy...

Dec quarterly.....
Total: cash at end of quarter (item 1.22)
(see note 6) $17,917,000

Mar quarterly......
1.21 Cash at beginning of quarter/year to date $11,049,000
Net increase (decrease) in cash held (573)
1.23 Cash at end of quarter $10,448,000

Question is where did that $7mil go between the end of the dec quarter and the start of the March quarterly?????

Cheers