I got this error with the Calendar using Internet Explorer 7.0 after clicking on the Year tab:
Line: 1345 Char: 7 Error: Unterminated string constant Code: 0
A "loading..." box just hangs there
We are aware of quite few issues users may experience when using epesi on IE6 and IE7. Thank you for reporting, I'm sure above mentioned problem will be resolved as well.
Fixes are currently underway.