At the bottom of a credit card register, Quicken displays "Credit Remaining." But it is not current. It is apparently looking at the ending balance instead of the current or online balance.
I enter scheduled transactions up to a year in advance for all accounts, including credit card accounts. In order to forecast my cash flow, I also enter the future payments against the credit cards (payments from my checking account). So my credit card registers ALWAYS have a $0 ending balance. But at any given moment, the CURRENT or ONLINE balance shows money owed, and this is the number that should be subtracted from the credit limit (in account details) to display the CREDIT REMAINING.