>I tried do duplicate it by having a form with a grid, generating the cursor and calling the report from the double click event of the grid but had no luck, except if I explicitly selected another table but that's just asking for it :), but hey, no complaints, why am I even trying to put bugs in my code? <g>. Perhaps it's something else we're missing.

The report is based on another table (or cursor), not the RecordSource for the grid table. This is the condition, the error will show its ugly face. If you can not replicate it, I would say: "Lucky you!" :)