Hi All, 

looking to see if anyone else had this problem before. I am trying to crate some new custom activity fields. We were somewhat close to the limit, so before creating new custom formula type fields I removed a few unused/redundant fields from the Activity object. Now, we have more than enough fields available but every time I try to create a new formula field i am receiving and error message: 

Unable to Access Page
The value of a parameter contains a character that is not allowed or the value exceeds the maximum allowed length. Remove the character from the parameter value or reduce the value length and resubmit. If the error still persists, report it to our Customer Support team. Provide the URL of the page you were requesting as well as any other related information.

Any idea what might be cuasing this? 

I saw some post saying that it might be due to Roll-up Summary feilds, but it has been more than 72 hours, surly by now they should have completed re-calculating. SF support has not responded yet so I an asking you guys. 

Please help.