Are you sure that they are contained by the SSTAB and merely superimposed
but with a real container of the form. To check just try and drag them off
the SSTAB. If you can't drag them past the SSTAB boundaries then they are
contained! If not, select them, edit-cut, select the sstab and paste.
--
Regards - John Rischmiller.

Basically the form has SSTab and Combobox controls
seperately. The Combobox control is just placed in the
SSTab. You are right the Combobox is actually contained in
one of the tab. Infact there are similar comboboxes in
other tabs (Co Details,Home/Biz Addr/Billing Addr) which
you don't see in the picture.

This problem of comboboxes not being visible is happening
only during form_load.

If the focus is taken to other tab(for example Home/Biz
tab) and focus returns to Personal Applicant Details tab
then I will be able to see all the  
Surname/Nationality/Type of Industry Comboboxes.

Kindly help me to solve this issue.

The problem will be gone for good if you place only a single frame on each
tab (border/caption optional) and place your controls in these frames...
Watch for link wrap...

Subject: Re: Lost focus?
http://groups.google.com/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&selm=u0%2...
HA.1064%40tkmsftngp04

--
Ken Halter - MS-MVP-VB - Please keep it in the groups..
http://www.vbsight.com - http://www.vbsight.com/MultiColumn.htm
New Tabbed Dialog http://www.vbsight.com/TBGDialogCTL.htm

Thanks very much for your reply. We tried to use Single
frame. But still the DropDown comboboxes don't seem to be
visible. If we switch between tabs then they become
visible. Kindly suggest us alternative solutions if any.

Thanks again in advance for your support

If you're sure that the combo's are contained by the frames and are still
misbehaving (which means ComboName.ZOrder wouldn't effect the display at
all), about all I can think of is to switch to the highest tab in form
load... and then switch to the default tab in form activate. That should be
fairly close to manually clicking on the tabs after form load.

--
Ken Halter - MS-MVP-VB - Please keep it in the groups..
http://www.vbsight.com/ - http://www.vbsight.com/MultiColumn.htm
New Tabbed Dialog http://www.vbsight.com/TBGDialogCTL.htm

We have already tried this solution also. But still the
controls are not visible. Is there any other solution?

Thanks in advance

I'm happy to take a look at the form if you email it to the address below,
though I don't have the experience of Ken and the other MVPs.
--
Regards - John Rischmiller.