[AccessD] Error 3071

[Cross posted to Access-L & AccessD]

Windows 98, Access97 SP2

A few days ago my report worked well, but now the Run-time error '3071' appears for date interval 01-Jan to 31-Dec. The query is running(60 rows of calculated sums), and the report is running too for smaller date interval, but the whole year is "too complex to be evaluated". I think that the report isn't too complicated. Can anyone shed any light?

Many TIA,

    Ervin

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