Crystal Reports Error when date is clicked on pop-up calendar

Message

Getting a runtime error when a date is clicked on a pop-up calendar.

The report has a date parameter so it prompts the user to enter a date. We can type in a date value (in the format YYYY-MM-DD) and the report will run fine, but if we use the pop-up calendar, as soon as a date is clicked, this error shows up:
a runtime error has occurred. do you wish to debug?
line: 636
Error: Unexpected call to method or property access.
This is happening on multiple Win XP machines and all have Crystal Reports XI.

I found KBase Article ID:2184555 pertaining to this issue (in the CR KB):

Article refers to: BusinessObjects Enterprise XI 
Symptom
When running an on-demand Crystal report with a date prompt then clicking the pop-up calendar and selecting a date, no date is entered in the value field and the following error message appears:
"Unexpected call to method or property access "

Cause
This is a known issue and has been assigned Track ID # 813332.
Resolution
To work around this issue, either:

1. Close the pop-up calendar.
2. Immediately reopen the calendar.
3. Select the date(s) then click OK to run the report.
-OR-
Enter the dates manually in YYYY-MM-DD format.
------------------------

Unfortunately, this is an unnaceptable solution. Does anyone know of a real resolution?

Is it me, or is Crystal support horrible?