These messages are new warning messages in RS 2005. They are not errors, but
you should not just ignore these warnings.
[rsOverlappingReportItems]: you won't see issues e.g. in Preview or PDF, but
in HTML overlapping reportitems are not supported and one of the two items
will get pushed so that they don't overlap. This may result in unwanted
layout changes in HTML.
[rsReportItemOutsideContainer]: this means that "textbox1" is contained
within another reportitem (e.g. a rectangle). Every reportitem has top/left
position and width/height settings. In this case, textbox1's left + width is
larger than its parent reportitem's width. This again may result in unwanted
layout changes during rendering.
-- Robert

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> Do anyone know what the following error messages mean?
>
[quoted text clipped - 4 lines]
> [rsReportItemOutsideContainer] The textbox 'textbox1' extends beyond the
> right edge of its container.