userform error

[Guest]

Hi,

For some reason, I'm suddenly getting an error when opening a userform (any
userform).
When I click a command button, the userform form will briefly open, but then
close and the sub procedure "userform1.show" will be highlighted in yellow.

Has anyone ever experienced this? It is now happening to all of my
userforms in all spreadsheets.

Thank you!

 

[Guest]

Although I couldn't pinpoint the problem, re-installing Excel has fixed the
problem.