Hi,

I had a similar problem last week and it nearly drove me mad.

In my case the problem was the button I clicked on form1 had a DialogResult property of Cancel, and this seemed to close the first form.

When I deleted the button and recreated it from scratch, the form worked okay. Maybe this might help you.

Also, check this link in VB.Net help for more details on showing forms:

ms-help://MS.VSCC/MS.MSDNVS/vbcon/html/vbtskDisplayingModelessForm.htm


Best regards,
Liam.