How to ge MsgBoxes to appear in the centre of a UserForm

Using Window 7 Home (64bit) - Excel 365.

I have an application that is run from a UserForm - is there some way that I can get MsgBoxes to appear in the centre of the UserForm?

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Martin LissOlder than dirtCommented:
Try this little demo.

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Zac HarrisSystems Administrator Commented:
You can use this code to position the box in the user form. You may have to tweak the numbers of course for your form...

With UserForm1
    .StartUpPosition = 0
    .Top = 100
    .Left = 25
End With

Open in new window

RzzBAuthor Commented:
Brilliant - Works a treat.
Many thanks.
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Martin LissOlder than dirtCommented:
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RzzBAuthor Commented:
Ooopsss - Spoke too soon - slight problem.

It works fine with the first Message box that is opened - opened perfectly in the centre of my UsreForm.

After this, further invocations of MsgboxEX, go to the top left of the monitor.

I must be doing something wrong?

Martin LissOlder than dirtCommented:
Do you have a project that you can zip up and attach and also describe the steps that resulted in the problem?
RzzBAuthor Commented:
OK, after much hair pulling, this seems to be associated with the fact that I'm running my application without any worksheets visible. For how/why see this thread...

Complications - Interactions with other WorkBooks

The attached is a small demo of the strange behaviour. It works fine with the application hidden on the first invocation - but on subsequent invocations the message box appears at the top right. This is on my single monitor set up.

On my multi screen set up it hangs on the second invocation.

Thanks for your help,
Martin LissOlder than dirtCommented:
Please describe step by step what to do to reproduce the problem because I don't seem to be able to reproduce it via Excel 2010.
RzzBAuthor Commented:
Here is a small video, on dropbox, showing what's going on.

BTW - When you run this test don't have any other excel workbooks running.
RzzBAuthor Commented:
One further thing I have just found is that if you don't move the userform after you open it, then it goes to the TopLeft on first invocation.
RzzBAuthor Commented:
One further thing I have just found is that if you don't move the userform after you open it, then it goes to the TopLeft on first invocation.

Hmmm - on further investigation - only sometimes ....
Martin LissOlder than dirtCommented:
Sorry but I still can't reproduce the problem and you might want to post a new question to get more attention. If you do you should note the the link you posted to your dropbox is missing the required colon following https.
RzzBAuthor Commented:
Opps yes - the link should be...

OK - Perhaps it's a 365 problem?

So do I do a completely new post, or do I somehow do it in this post but not as a comment?
Martin LissOlder than dirtCommented:
I would open a new question explaining the problem, refer to this question and include the video.
RzzBAuthor Commented:
Just for clarity - did you run the test workbook that I posted - and it worked correctly when using Excel 2010 - what Windows version are you using?
Martin LissOlder than dirtCommented:
I used your test file in Excel 2010 in Windows XP running as a VM on an iMac (not exactly typical), and yes as far as I can tell it works correctly.
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