I build a form with a TreeView control in it. A few days ago somebody installs "something" in my pc, so now the TreeView reports me an error every time I try to edit the form with "modify screen". The error is 0x80040154 Class not registered.
I tried reinstalling VFP5, but the error remains.
I tried with RegSvr32, but the error still remains.
How can I got the form back to life?
Any ideas?

Thanks.