CIBIS

If you
- Insert a table with a caption.
- Double click the table border
- In dblclick event if a IsTableSelected, Call AlterTable without a caption
You get an access violation in MSHTML.
If you dblclick the caption IsTableSelected still returns true and the call to AlterTable is OK.
I think it has problems redrawing the table selection indicators because caption no longer exists. Don't think this is a ProfDHTMLEdit problem but maybe you have a workaround. eg. Can you remove the table selection indicators before calling AlterTable?
Regards
Adam