Parameters from siebel being truncated after special characters

[rkin005]

I've built an Actuate report which is run from the Siebel web client and has a parameter applet associated with it. The parameter applet has a single line text field which is used as the heading of the report. The problem is that when special characters are entered in the text field they're not passed to Actuate correctly - the parameter value is truncated at the first special character. eg if the user enters the value:
Bob's report
only the value "Bob" is sent to Actuate. Same thing happens with & character, and presumably others.

I'm pretty sure the problem isn't in my report, as i've tried scheduling the report and looking at the report parameters in the Actuate Portal job properties. In the above example it would list [Bob] as the parameter value, so the apostrophe and following text isn't even reaching my report. Also, if I run using the Siebel dedicated client the report displays "Bob's report" just fine.

Any suggestions?

The 'HTML Display Mode' property of the parameter applet field is set to 'EncodeData' (the default). I tried setting it to 'FormatData' but that had no effect.

I'm using
Siebel 7.7.2
Actuate 7 SP2 Fix 9