there are two things. first, put a field in the first arg:
Code:
intHolder = DCount("FIELD NAME", "qryParameters", "QuestID = Me.QuestID")
second, always concatenate out field names in criteria statements (they are treated just like vars):
Code:
intHolder = DCount("FIELD NAME", "qryParameters", "QuestID = " & Me.QuestID)
and actually, people get this confused all the time. Remember, when you type in "me." in code, the intellisense should always drop down (unless it's shut off, which it never should be). If it doesn't, that's what tells you that the syntax is wrong.
Is your example, you would probably not have gotten a dropdown if you were typing it inside of quotes.
also remember, concat syntax is different for numbers/dates vs. strings. those are the two primary categories in Access.