Calendar year to fiscal year - fixed asset problems

We are moving from a calendar year to a fiscal year.  The G/L repost to finally working great, but we are having problems with the fixed assets repost. Some of the assets have a correct bal fwd and net book value, but some of them appear to be missing 1 to 3 months of depreciation.  If anyone has been through this before we could sure use some help on understanding if we have something setup wrong or the best way to correct fixed assets without effecting the G/L.

Thanks,

Tony