ExcelBanter - Excel Locked up behind splashscreen

I was tinkering in Excel and created a splashscreen for myself with a
Userform in VB in my PERSONAL book (where personal macros are stored, etc).
Unfortunately, I tripped one of the Properties on the UserForm (I believe it
was "Enabled") from true to false, and now I cannot get into Excel.

The splashscreen shows up correctly, but I cannot close it and it is not
auto-closing as it's supposed to do after 7 seconds. I cannot get into Excel
proper.

Any suggestions on how I can work around this? I'm on a company networked
system without admin rights to my computer and certain areas of my system are
off-limits to me. (I can get a PC tech to help out if I need that access,
though.)