>> If I understand, then you say I need to turn off "Open Form As Popup" on the browse? Or set the general extension default to "OFF"?
The global extension lets you turn it all on, all off, or just use the local setting. But yes, I'm saying your local setting should be set to use a popup.
>> If I do this, then the same thing happens as I described above. Validation is lost when you open and close the "otherform".
nope.
>> It seems to work if I call "otherform" as a popup. If I cancel out of OtherForm, then the validation is still working on the mainform.
yep.
>> But because of the other bug I've reported, if I click Save on the OtherForm, then the Save btuton of the main form stops working anyway.
that's a separate issue.
** bear in mind the user can close the window lots of ways, without you being alerted. For example they can use the X at the top right of the screen, which is _not_ the same as Cancel. Or they can close their browser, or go to another page. You should not rely on the "cancel" button.
cheers
Bruce