Any known issues running Zoho Creator apps on Windows 8 or IE 9?

Any known issues running Zoho Creator apps on Windows 8 or IE 9?

We developed an application using Zoho Creator. We have over 80 users who regularly access the databases. We have not experienced any problems, but one user who recently purchased a new computer with Windows 8 says that the Zoho apps do not work.  She says she is experiencing constant freezes while entering data and slow transition times between pages.

Is anyone else experiencing issues running Zoho Creator apps on Windows 8?