I just completed all my journal entries and went to reconcile my clients chequing account. It is appearing as -$3000 when it should be -$17.66. 

I printed out the g/L went through all the bank statements and the only discrepancy was that there was an amount for $1500 that should not be in the chequing account. When I go to adjust it ,it cant be found. Upon further look there are 4 journal entries in total that I cannot look up but when I print out the G/L it shows them?!?

even if I correct the $1500 that shouldn’t be there, it still leaves $1500 unaccounted for. This is the first year the client has been in sage. I’m at a loss as to what to do at this point, extremely frustrated!!