Excel Crashes after copy/paste macro

[Engineer Joe]

Sub CopyInsertRow()
On Error Resume Next
    Selection.EntireRow.Copy
    Selection.EntireRow.Insert
End Sub

I've run the above script a ton. I've got it shortcut key'd. Sometimes I run it 5 or 6 in a row. Almost daily, directly after running it, Excel will crash and I'll get that "Excel has stopped working" message. I noticed it's basically only after this macro that Excel will crash, but it's only like 1 out of every 100 times. Anyone know what could be causing that or how to fix it?

 

[Fluff]

How many cells are you selecting?
Also are you ever selecting non contiguous cells

 

[Engineer Joe]

I may select as many as 8 to 10 cells usually, which in the VBA converts to 8 ot 10 rows. Almost never non-contiguous.

 

[Fluff]

In that case there's no obvious reason that I can think of.
When it crashes do you get an "Out of memory" warning, or anything similar?