Random browser error: RV_RES is undefined

Problem(Abstract)Having random browser error when running reports :
RV_RES is undefined, Code 0, URL http://server/cognosalias/rv/cv.js

SymptomRV_RES is undefined

cv.js

CauseIn a distributed installation the Cognos services were modified in Cognos Configuration on the Content Manager component.

Resolving the problemVerify that the services in Cognos Configuration for the Content Manager are set as default:

Dispatcher and Presentation service need to be disabled. All others services are enabled

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