unhandled exception error

[hazejean]

I am getting unhandles exception error on code below
Any ideas
fileout is string
test2 is string
noverbs is integer
mycheck is check box
listbox1 is string

RichTextBox1.Text = text2
'output file for module
fileout = "c:\" + ListBox1.Items(0) + ".doc"
If Mycheck(noverbs + 1).Checked = True Then RichTextBox1.SaveFile(fileout)

Thanks

 

[PlausiblyDamp]

What kind of exception is thrown? Which line causes the exception? Is Mycheck a control array? Should the first line be = test2?